Finding the Third Proportional to 69,788,591 and 115,909,980

Step by Step Solution

1. Step 1: Write the proportion equation
   69,788,591 : 115,909,980 = 115,909,980 : x
2. Step 2: Convert to fraction form
   69,788,591/115,909,980 = 115,909,980/x
3. Step 3: Cross multiply
   69,788,591x = 115,909,980 × 115,909,980
4. Step 4: Simplify right side
   69,788,591x = 13,435,123,463,600,400
5. Step 5: Solve for x
   x = 13,435,123,463,600,400/69,788,591
6. Step 6: Final answer
   x = 192,511,745.42