Finding the Third Proportional to 63,909,488 and 139,776,436

Step by Step Solution

1. Step 1: Write the proportion equation
   63,909,488 : 139,776,436 = 139,776,436 : x
2. Step 2: Convert to fraction form
   63,909,488/139,776,436 = 139,776,436/x
3. Step 3: Cross multiply
   63,909,488x = 139,776,436 × 139,776,436
4. Step 4: Simplify right side
   63,909,488x = 19,537,452,060,862,096
5. Step 5: Solve for x
   x = 19,537,452,060,862,096/63,909,488
6. Step 6: Final answer
   x = 305,705,031.79