Finding the Third Proportional to 2,571,518,784 and 5,581,417,200

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571,518,784 : 5,581,417,200 = 5,581,417,200 : x
2. Step 2: Convert to fraction form
   2,571,518,784/5,581,417,200 = 5,581,417,200/x
3. Step 3: Cross multiply
   2,571,518,784x = 5,581,417,200 × 5,581,417,200
4. Step 4: Simplify right side
   2,571,518,784x = 31,152,217,960,455,839,744
5. Step 5: Solve for x
   x = 31,152,217,960,455,839,744/2,571,518,784
6. Step 6: Final answer
   x = 12,114,326,426.19