Finding the Third Proportional to 3,666,458 and 5,387,313

Step by Step Solution

1. Step 1: Write the proportion equation
   3,666,458 : 5,387,313 = 5,387,313 : x
2. Step 2: Convert to fraction form
   3,666,458/5,387,313 = 5,387,313/x
3. Step 3: Cross multiply
   3,666,458x = 5,387,313 × 5,387,313
4. Step 4: Simplify right side
   3,666,458x = 29,023,141,359,969
5. Step 5: Solve for x
   x = 29,023,141,359,969/3,666,458
6. Step 6: Final answer
   x = 7,915,852.67