Finding the Third Proportional to 639,362 and 954,665

Step by Step Solution

1. Step 1: Write the proportion equation
   639,362 : 954,665 = 954,665 : x
2. Step 2: Convert to fraction form
   639,362/954,665 = 954,665/x
3. Step 3: Cross multiply
   639,362x = 954,665 × 954,665
4. Step 4: Simplify right side
   639,362x = 911,385,262,225
5. Step 5: Solve for x
   x = 911,385,262,225/639,362
6. Step 6: Final answer
   x = 1,425,460.48