Finding the Third Proportional to 392,546 and 847,300

Step by Step Solution

1. Step 1: Write the proportion equation
   392,546 : 847,300 = 847,300 : x
2. Step 2: Convert to fraction form
   392,546/847,300 = 847,300/x
3. Step 3: Cross multiply
   392,546x = 847,300 × 847,300
4. Step 4: Simplify right side
   392,546x = 717,917,290,000
5. Step 5: Solve for x
   x = 717,917,290,000/392,546
6. Step 6: Final answer
   x = 1,828,874.30