Finding the Third Proportional to 91,229.63 and 137,936.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,229.63 : 137,936.25 = 137,936.25 : x
2. Step 2: Convert to fraction form
   91,229.63/137,936.25 = 137,936.25/x
3. Step 3: Cross multiply
   91,229.63x = 137,936.25 × 137,936.25
4. Step 4: Simplify right side
   91,229.63x = 19,026,409,064.06
5. Step 5: Solve for x
   x = 19,026,409,064.06/91,229.63
6. Step 6: Final answer
   x = 208,555.16