Finding the Third Proportional to 63,976,738 and 138,147,620

Step by Step Solution

1. Step 1: Write the proportion equation
   63,976,738 : 138,147,620 = 138,147,620 : x
2. Step 2: Convert to fraction form
   63,976,738/138,147,620 = 138,147,620/x
3. Step 3: Cross multiply
   63,976,738x = 138,147,620 × 138,147,620
4. Step 4: Simplify right side
   63,976,738x = 19,084,764,911,664,400
5. Step 5: Solve for x
   x = 19,084,764,911,664,400/63,976,738
6. Step 6: Final answer
   x = 298,307,877.34