Finding the Third Proportional to 63,862,642 and 139,815,560

Step by Step Solution

1. Step 1: Write the proportion equation
   63,862,642 : 139,815,560 = 139,815,560 : x
2. Step 2: Convert to fraction form
   63,862,642/139,815,560 = 139,815,560/x
3. Step 3: Cross multiply
   63,862,642x = 139,815,560 × 139,815,560
4. Step 4: Simplify right side
   63,862,642x = 19,548,390,818,113,600
5. Step 5: Solve for x
   x = 19,548,390,818,113,600/63,862,642
6. Step 6: Final answer
   x = 306,100,565.31