Finding the Third Proportional to 31,500 and 45,387

Step by Step Solution

1. Step 1: Write the proportion equation
   31,500 : 45,387 = 45,387 : x
2. Step 2: Convert to fraction form
   31,500/45,387 = 45,387/x
3. Step 3: Cross multiply
   31,500x = 45,387 × 45,387
4. Step 4: Simplify right side
   31,500x = 2,059,979,769
5. Step 5: Solve for x
   x = 2,059,979,769/31,500
6. Step 6: Final answer
   x = 65,396.18