Finding the Third Proportional to 31,461,937,396 and 67,411,490,540

Step by Step Solution

1. Step 1: Write the proportion equation
   31,461,937,396 : 67,411,490,540 = 67,411,490,540 : x
2. Step 2: Convert to fraction form
   31,461,937,396/67,411,490,540 = 67,411,490,540/x
3. Step 3: Cross multiply
   31,461,937,396x = 67,411,490,540 × 67,411,490,540
4. Step 4: Simplify right side
   31,461,937,396x = 4,544,309,056,824,509,726,720
5. Step 5: Solve for x
   x = 4,544,309,056,824,509,726,720/31,461,937,396
6. Step 6: Final answer
   x = 144,438,309,682.81