Finding the Third Proportional to 31,799,654 and 68,635,240

Step by Step Solution

1. Step 1: Write the proportion equation
   31,799,654 : 68,635,240 = 68,635,240 : x
2. Step 2: Convert to fraction form
   31,799,654/68,635,240 = 68,635,240/x
3. Step 3: Cross multiply
   31,799,654x = 68,635,240 × 68,635,240
4. Step 4: Simplify right side
   31,799,654x = 4,710,796,169,857,600
5. Step 5: Solve for x
   x = 4,710,796,169,857,600/31,799,654
6. Step 6: Final answer
   x = 148,139,856.17