Finding the Third Proportional to 69,520,978.50 and 105,176,234.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69,520,978.50 : 105,176,234.25 = 105,176,234.25 : x
2. Step 2: Convert to fraction form
   69,520,978.50/105,176,234.25 = 105,176,234.25/x
3. Step 3: Cross multiply
   69,520,978.50x = 105,176,234.25 × 105,176,234.25
4. Step 4: Simplify right side
   69,520,978.50x = 11,062,040,251,010,874
5. Step 5: Solve for x
   x = 11,062,040,251,010,874/69,520,978.50
6. Step 6: Final answer
   x = 159,118,017.18