Finding the Third Proportional to 31,187,913,523 and 68,090,941,926

Step by Step Solution

1. Step 1: Write the proportion equation
   31,187,913,523 : 68,090,941,926 = 68,090,941,926 : x
2. Step 2: Convert to fraction form
   31,187,913,523/68,090,941,926 = 68,090,941,926/x
3. Step 3: Cross multiply
   31,187,913,523x = 68,090,941,926 × 68,090,941,926
4. Step 4: Simplify right side
   31,187,913,523x = 4,636,376,372,369,904,631,808
5. Step 5: Solve for x
   x = 4,636,376,372,369,904,631,808/31,187,913,523
6. Step 6: Final answer
   x = 148,659,395,536.38