Finding the Third Proportional to 69,280 and 151,516

Step by Step Solution

1. Step 1: Write the proportion equation
   69,280 : 151,516 = 151,516 : x
2. Step 2: Convert to fraction form
   69,280/151,516 = 151,516/x
3. Step 3: Cross multiply
   69,280x = 151,516 × 151,516
4. Step 4: Simplify right side
   69,280x = 22,957,098,256
5. Step 5: Solve for x
   x = 22,957,098,256/69,280
6. Step 6: Final answer
   x = 331,366.89