Finding the Third Proportional to 31,280 and 45,744

Step by Step Solution

1. Step 1: Write the proportion equation
   31,280 : 45,744 = 45,744 : x
2. Step 2: Convert to fraction form
   31,280/45,744 = 45,744/x
3. Step 3: Cross multiply
   31,280x = 45,744 × 45,744
4. Step 4: Simplify right side
   31,280x = 2,092,513,536
5. Step 5: Solve for x
   x = 2,092,513,536/31,280
6. Step 6: Final answer
   x = 66,896.21