Finding the Third Proportional to 65,789.40 and 99,337.64

Step by Step Solution

1. Step 1: Write the proportion equation
   65,789.40 : 99,337.64 = 99,337.64 : x
2. Step 2: Convert to fraction form
   65,789.40/99,337.64 = 99,337.64/x
3. Step 3: Cross multiply
   65,789.40x = 99,337.64 × 99,337.64
4. Step 4: Simplify right side
   65,789.40x = 9,867,966,844.94
5. Step 5: Solve for x
   x = 9,867,966,844.94/65,789.40
6. Step 6: Final answer
   x = 149,993.26