Finding the Third Proportional to 63,902,116.50 and 139,968,069

Step by Step Solution

1. Step 1: Write the proportion equation
   63,902,116.50 : 139,968,069 = 139,968,069 : x
2. Step 2: Convert to fraction form
   63,902,116.50/139,968,069 = 139,968,069/x
3. Step 3: Cross multiply
   63,902,116.50x = 139,968,069 × 139,968,069
4. Step 4: Simplify right side
   63,902,116.50x = 19,591,060,339,588,760
5. Step 5: Solve for x
   x = 19,591,060,339,588,760/63,902,116.50
6. Step 6: Final answer
   x = 306,579,209.15