Finding the Third Proportional to 3,706,612 and 8,121,800

Step by Step Solution

1. Step 1: Write the proportion equation
   3,706,612 : 8,121,800 = 8,121,800 : x
2. Step 2: Convert to fraction form
   3,706,612/8,121,800 = 8,121,800/x
3. Step 3: Cross multiply
   3,706,612x = 8,121,800 × 8,121,800
4. Step 4: Simplify right side
   3,706,612x = 65,963,635,240,000
5. Step 5: Solve for x
   x = 65,963,635,240,000/3,706,612
6. Step 6: Final answer
   x = 17,796,207.22