Finding the Third Proportional to 78,749,796 and 123,253,944

Step by Step Solution

1. Step 1: Write the proportion equation
   78,749,796 : 123,253,944 = 123,253,944 : x
2. Step 2: Convert to fraction form
   78,749,796/123,253,944 = 123,253,944/x
3. Step 3: Cross multiply
   78,749,796x = 123,253,944 × 123,253,944
4. Step 4: Simplify right side
   78,749,796x = 15,191,534,711,555,136
5. Step 5: Solve for x
   x = 15,191,534,711,555,136/78,749,796
6. Step 6: Final answer
   x = 192,908,877.02