Finding the Third Proportional to 1,478,387 and 3,207,730

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478,387 : 3,207,730 = 3,207,730 : x
2. Step 2: Convert to fraction form
   1,478,387/3,207,730 = 3,207,730/x
3. Step 3: Cross multiply
   1,478,387x = 3,207,730 × 3,207,730
4. Step 4: Simplify right side
   1,478,387x = 10,289,531,752,900
5. Step 5: Solve for x
   x = 10,289,531,752,900/1,478,387
6. Step 6: Final answer
   x = 6,959,971.75