Finding the Third Proportional to 11,885,671 and 17,856,883.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,885,671 : 17,856,883.50 = 17,856,883.50 : x
2. Step 2: Convert to fraction form
   11,885,671/17,856,883.50 = 17,856,883.50/x
3. Step 3: Cross multiply
   11,885,671x = 17,856,883.50 × 17,856,883.50
4. Step 4: Simplify right side
   11,885,671x = 318,868,288,332,572.25
5. Step 5: Solve for x
   x = 318,868,288,332,572.25/11,885,671
6. Step 6: Final answer
   x = 26,827,958.50