Finding the Third Proportional to 42,934.50 and 65,678.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,934.50 : 65,678.50 = 65,678.50 : x
2. Step 2: Convert to fraction form
   42,934.50/65,678.50 = 65,678.50/x
3. Step 3: Cross multiply
   42,934.50x = 65,678.50 × 65,678.50
4. Step 4: Simplify right side
   42,934.50x = 4,313,665,362.25
5. Step 5: Solve for x
   x = 4,313,665,362.25/42,934.50
6. Step 6: Final answer
   x = 100,470.84