Finding the Third Proportional to 12,115,345.50 and 17,982,789.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,115,345.50 : 17,982,789.75 = 17,982,789.75 : x
2. Step 2: Convert to fraction form
   12,115,345.50/17,982,789.75 = 17,982,789.75/x
3. Step 3: Cross multiply
   12,115,345.50x = 17,982,789.75 × 17,982,789.75
4. Step 4: Simplify right side
   12,115,345.50x = 323,380,727,192,705.06
5. Step 5: Solve for x
   x = 323,380,727,192,705.06/12,115,345.50
6. Step 6: Final answer
   x = 26,691,828.74