Finding the Third Proportional to 552,612 and 839,730

Step by Step Solution

1. Step 1: Write the proportion equation
   552,612 : 839,730 = 839,730 : x
2. Step 2: Convert to fraction form
   552,612/839,730 = 839,730/x
3. Step 3: Cross multiply
   552,612x = 839,730 × 839,730
4. Step 4: Simplify right side
   552,612x = 705,146,472,900
5. Step 5: Solve for x
   x = 705,146,472,900/552,612
6. Step 6: Final answer
   x = 1,276,024.54