Finding the Third Proportional to 539,101,161 and 788,434,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   539,101,161 : 788,434,105.50 = 788,434,105.50 : x
2. Step 2: Convert to fraction form
   539,101,161/788,434,105.50 = 788,434,105.50/x
3. Step 3: Cross multiply
   539,101,161x = 788,434,105.50 × 788,434,105.50
4. Step 4: Simplify right side
   539,101,161x = 621,628,338,715,585,152
5. Step 5: Solve for x
   x = 621,628,338,715,585,152/539,101,161
6. Step 6: Final answer
   x = 1,153,082,915.95