Finding the Third Proportional to 65,228,338.50 and 139,793,910

Step by Step Solution

1. Step 1: Write the proportion equation
   65,228,338.50 : 139,793,910 = 139,793,910 : x
2. Step 2: Convert to fraction form
   65,228,338.50/139,793,910 = 139,793,910/x
3. Step 3: Cross multiply
   65,228,338.50x = 139,793,910 × 139,793,910
4. Step 4: Simplify right side
   65,228,338.50x = 19,542,337,273,088,100
5. Step 5: Solve for x
   x = 19,542,337,273,088,100/65,228,338.50
6. Step 6: Final answer
   x = 299,598,881.75