Finding the Third Proportional to 63,897,702 and 139,958,328

Step by Step Solution

1. Step 1: Write the proportion equation
   63,897,702 : 139,958,328 = 139,958,328 : x
2. Step 2: Convert to fraction form
   63,897,702/139,958,328 = 139,958,328/x
3. Step 3: Cross multiply
   63,897,702x = 139,958,328 × 139,958,328
4. Step 4: Simplify right side
   63,897,702x = 19,588,333,576,555,584
5. Step 5: Solve for x
   x = 19,588,333,576,555,584/63,897,702
6. Step 6: Final answer
   x = 306,557,715.90