Finding the Third Proportional to 63,976,740 and 138,147,624

Step by Step Solution

1. Step 1: Write the proportion equation
   63,976,740 : 138,147,624 = 138,147,624 : x
2. Step 2: Convert to fraction form
   63,976,740/138,147,624 = 138,147,624/x
3. Step 3: Cross multiply
   63,976,740x = 138,147,624 × 138,147,624
4. Step 4: Simplify right side
   63,976,740x = 19,084,766,016,845,376
5. Step 5: Solve for x
   x = 19,084,766,016,845,376/63,976,740
6. Step 6: Final answer
   x = 298,307,885.29