Finding the Third Proportional to 5,709,610 and 8,406,708

Step by Step Solution

1. Step 1: Write the proportion equation
   5,709,610 : 8,406,708 = 8,406,708 : x
2. Step 2: Convert to fraction form
   5,709,610/8,406,708 = 8,406,708/x
3. Step 3: Cross multiply
   5,709,610x = 8,406,708 × 8,406,708
4. Step 4: Simplify right side
   5,709,610x = 70,672,739,397,264
5. Step 5: Solve for x
   x = 70,672,739,397,264/5,709,610
6. Step 6: Final answer
   x = 12,377,857.58