Finding the Third Proportional to 525,187,416 and 1,215,715,404

Step by Step Solution

1. Step 1: Write the proportion equation
   525,187,416 : 1,215,715,404 = 1,215,715,404 : x
2. Step 2: Convert to fraction form
   525,187,416/1,215,715,404 = 1,215,715,404/x
3. Step 3: Cross multiply
   525,187,416x = 1,215,715,404 × 1,215,715,404
4. Step 4: Simplify right side
   525,187,416x = 1,477,963,943,522,883,328
5. Step 5: Solve for x
   x = 1,477,963,943,522,883,328/525,187,416
6. Step 6: Final answer
   x = 2,814,164,807.64