Finding the Third Proportional to 639,432 and 1,399,082

Step by Step Solution

1. Step 1: Write the proportion equation
   639,432 : 1,399,082 = 1,399,082 : x
2. Step 2: Convert to fraction form
   639,432/1,399,082 = 1,399,082/x
3. Step 3: Cross multiply
   639,432x = 1,399,082 × 1,399,082
4. Step 4: Simplify right side
   639,432x = 1,957,430,442,724
5. Step 5: Solve for x
   x = 1,957,430,442,724/639,432
6. Step 6: Final answer
   x = 3,061,201.88