Finding the Third Proportional to 63,897,990 and 139,959,184

Step by Step Solution

1. Step 1: Write the proportion equation
   63,897,990 : 139,959,184 = 139,959,184 : x
2. Step 2: Convert to fraction form
   63,897,990/139,959,184 = 139,959,184/x
3. Step 3: Cross multiply
   63,897,990x = 139,959,184 × 139,959,184
4. Step 4: Simplify right side
   63,897,990x = 19,588,573,185,945,856
5. Step 5: Solve for x
   x = 19,588,573,185,945,856/63,897,990
6. Step 6: Final answer
   x = 306,560,084.06