Convert from yottameter to palmo [Texas]

Unit Definition (yottameter)
The yottametre (or yottameter), symbol: Ym, is a unit of distance. One yottametre is equal to 1x10+24 (1e+24) in scientific notation. Which is a very large distance. Note this is different from a yoctometre, which is 1e-24, a very small distance.

Unit Definition (palmo [Texas])
The palmo is a traditional unit of distance in Spain and Portugal. The traditional Spanish palmo equals 9 pulgadas or 1/4 vara. In Texas, 1/4 vara comes to 8 1/3 inches (21.17 centimeters). These units are based on the width of a person's outstretched hand, from the tip of the thumb to the tip of the little finger, a definition identical to that of the English span.