Finding the Third Proportional to 1,221,555 and 2,632,445

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,555 : 2,632,445 = 2,632,445 : x
2. Step 2: Convert to fraction form
   1,221,555/2,632,445 = 2,632,445/x
3. Step 3: Cross multiply
   1,221,555x = 2,632,445 × 2,632,445
4. Step 4: Simplify right side
   1,221,555x = 6,929,766,678,025
5. Step 5: Solve for x
   x = 6,929,766,678,025/1,221,555
6. Step 6: Final answer
   x = 5,672,905.99