Finding the Third Proportional to 67,981.50 and 103,411.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,981.50 : 103,411.50 = 103,411.50 : x
2. Step 2: Convert to fraction form
   67,981.50/103,411.50 = 103,411.50/x
3. Step 3: Cross multiply
   67,981.50x = 103,411.50 × 103,411.50
4. Step 4: Simplify right side
   67,981.50x = 10,693,938,332.25
5. Step 5: Solve for x
   x = 10,693,938,332.25/67,981.50
6. Step 6: Final answer
   x = 157,306.60