Finding the Third Proportional to 29,753,586,858 and 64,737,139,275

Step by Step Solution

1. Step 1: Write the proportion equation
   29,753,586,858 : 64,737,139,275 = 64,737,139,275 : x
2. Step 2: Convert to fraction form
   29,753,586,858/64,737,139,275 = 64,737,139,275/x
3. Step 3: Cross multiply
   29,753,586,858x = 64,737,139,275 × 64,737,139,275
4. Step 4: Simplify right side
   29,753,586,858x = 4,190,897,201,510,747,734,016
5. Step 5: Solve for x
   x = 4,190,897,201,510,747,734,016/29,753,586,858
6. Step 6: Final answer
   x = 140,853,511,931.59