Finding the Third Proportional to 71,363.25 and 153,688.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,363.25 : 153,688.50 = 153,688.50 : x
2. Step 2: Convert to fraction form
   71,363.25/153,688.50 = 153,688.50/x
3. Step 3: Cross multiply
   71,363.25x = 153,688.50 × 153,688.50
4. Step 4: Simplify right side
   71,363.25x = 23,620,155,032.25
5. Step 5: Solve for x
   x = 23,620,155,032.25/71,363.25
6. Step 6: Final answer
   x = 330,984.86