Finding the Third Proportional to 71,139.50 and 103,037.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,139.50 : 103,037.25 = 103,037.25 : x
2. Step 2: Convert to fraction form
   71,139.50/103,037.25 = 103,037.25/x
3. Step 3: Cross multiply
   71,139.50x = 103,037.25 × 103,037.25
4. Step 4: Simplify right side
   71,139.50x = 10,616,674,887.56
5. Step 5: Solve for x
   x = 10,616,674,887.56/71,139.50
6. Step 6: Final answer
   x = 149,237.41