Finding the Third Proportional to 65,644.25 and 99,242.75

Step by Step Solution

1. Step 1: Write the proportion equation
   65,644.25 : 99,242.75 = 99,242.75 : x
2. Step 2: Convert to fraction form
   65,644.25/99,242.75 = 99,242.75/x
3. Step 3: Cross multiply
   65,644.25x = 99,242.75 × 99,242.75
4. Step 4: Simplify right side
   65,644.25x = 9,849,123,427.56
5. Step 5: Solve for x
   x = 9,849,123,427.56/65,644.25
6. Step 6: Final answer
   x = 150,037.87