Finding the Third Proportional to 42,972.75 and 64,932.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,972.75 : 64,932.75 = 64,932.75 : x
2. Step 2: Convert to fraction form
   42,972.75/64,932.75 = 64,932.75/x
3. Step 3: Cross multiply
   42,972.75x = 64,932.75 × 64,932.75
4. Step 4: Simplify right side
   42,972.75x = 4,216,262,022.56
5. Step 5: Solve for x
   x = 4,216,262,022.56/42,972.75
6. Step 6: Final answer
   x = 98,114.78