Finding the Third Proportional to 5,715,220 and 8,706,822

Step by Step Solution

1. Step 1: Write the proportion equation
   5,715,220 : 8,706,822 = 8,706,822 : x
2. Step 2: Convert to fraction form
   5,715,220/8,706,822 = 8,706,822/x
3. Step 3: Cross multiply
   5,715,220x = 8,706,822 × 8,706,822
4. Step 4: Simplify right side
   5,715,220x = 75,808,749,339,684
5. Step 5: Solve for x
   x = 75,808,749,339,684/5,715,220
6. Step 6: Final answer
   x = 13,264,362.41