Finding the Third Proportional to 639,502 and 1,381,468

Step by Step Solution

1. Step 1: Write the proportion equation
   639,502 : 1,381,468 = 1,381,468 : x
2. Step 2: Convert to fraction form
   639,502/1,381,468 = 1,381,468/x
3. Step 3: Cross multiply
   639,502x = 1,381,468 × 1,381,468
4. Step 4: Simplify right side
   639,502x = 1,908,453,835,024
5. Step 5: Solve for x
   x = 1,908,453,835,024/639,502
6. Step 6: Final answer
   x = 2,984,281.26