Finding the Third Proportional to 40,159.13 and 74,371.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,159.13 : 74,371.50 = 74,371.50 : x
2. Step 2: Convert to fraction form
   40,159.13/74,371.50 = 74,371.50/x
3. Step 3: Cross multiply
   40,159.13x = 74,371.50 × 74,371.50
4. Step 4: Simplify right side
   40,159.13x = 5,531,120,012.25
5. Step 5: Solve for x
   x = 5,531,120,012.25/40,159.13
6. Step 6: Final answer
   x = 137,730.09