Finding the Third Proportional to 812,644 and 1,260,048

Step by Step Solution

1. Step 1: Write the proportion equation
   812,644 : 1,260,048 = 1,260,048 : x
2. Step 2: Convert to fraction form
   812,644/1,260,048 = 1,260,048/x
3. Step 3: Cross multiply
   812,644x = 1,260,048 × 1,260,048
4. Step 4: Simplify right side
   812,644x = 1,587,720,962,304
5. Step 5: Solve for x
   x = 1,587,720,962,304/812,644
6. Step 6: Final answer
   x = 1,953,771.84