Finding the Third Proportional to 1,564,920 and 3,428,730

Step by Step Solution

1. Step 1: Write the proportion equation
   1,564,920 : 3,428,730 = 3,428,730 : x
2. Step 2: Convert to fraction form
   1,564,920/3,428,730 = 3,428,730/x
3. Step 3: Cross multiply
   1,564,920x = 3,428,730 × 3,428,730
4. Step 4: Simplify right side
   1,564,920x = 11,756,189,412,900
5. Step 5: Solve for x
   x = 11,756,189,412,900/1,564,920
6. Step 6: Final answer
   x = 7,512,326.13