Finding the Third Proportional to 52,665.75 and 79,665.75

Step by Step Solution

1. Step 1: Write the proportion equation
   52,665.75 : 79,665.75 = 79,665.75 : x
2. Step 2: Convert to fraction form
   52,665.75/79,665.75 = 79,665.75/x
3. Step 3: Cross multiply
   52,665.75x = 79,665.75 × 79,665.75
4. Step 4: Simplify right side
   52,665.75x = 6,346,631,723.06
5. Step 5: Solve for x
   x = 6,346,631,723.06/52,665.75
6. Step 6: Final answer
   x = 120,507.76