Finding the Third Proportional to 387,874 and 822,700

Step by Step Solution

1. Step 1: Write the proportion equation
   387,874 : 822,700 = 822,700 : x
2. Step 2: Convert to fraction form
   387,874/822,700 = 822,700/x
3. Step 3: Cross multiply
   387,874x = 822,700 × 822,700
4. Step 4: Simplify right side
   387,874x = 676,835,290,000
5. Step 5: Solve for x
   x = 676,835,290,000/387,874
6. Step 6: Final answer
   x = 1,744,987.52