Finding the Third Proportional to 5,709,632 and 8,406,736

Step by Step Solution

1. Step 1: Write the proportion equation
   5,709,632 : 8,406,736 = 8,406,736 : x
2. Step 2: Convert to fraction form
   5,709,632/8,406,736 = 8,406,736/x
3. Step 3: Cross multiply
   5,709,632x = 8,406,736 × 8,406,736
4. Step 4: Simplify right side
   5,709,632x = 70,673,210,173,696
5. Step 5: Solve for x
   x = 70,673,210,173,696/5,709,632
6. Step 6: Final answer
   x = 12,377,892.34