Finding the Third Proportional to 392,552 and 851,488

Step by Step Solution

1. Step 1: Write the proportion equation
   392,552 : 851,488 = 851,488 : x
2. Step 2: Convert to fraction form
   392,552/851,488 = 851,488/x
3. Step 3: Cross multiply
   392,552x = 851,488 × 851,488
4. Step 4: Simplify right side
   392,552x = 725,031,814,144
5. Step 5: Solve for x
   x = 725,031,814,144/392,552
6. Step 6: Final answer
   x = 1,846,970.12