Finding the Third Proportional to 1,431,572 and 3,115,045

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431,572 : 3,115,045 = 3,115,045 : x
2. Step 2: Convert to fraction form
   1,431,572/3,115,045 = 3,115,045/x
3. Step 3: Cross multiply
   1,431,572x = 3,115,045 × 3,115,045
4. Step 4: Simplify right side
   1,431,572x = 9,703,505,352,025
5. Step 5: Solve for x
   x = 9,703,505,352,025/1,431,572
6. Step 6: Final answer
   x = 6,778,216.78