Finding the Third Proportional to 42,233 and 66,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,233 : 66,868.50 = 66,868.50 : x
2. Step 2: Convert to fraction form
   42,233/66,868.50 = 66,868.50/x
3. Step 3: Cross multiply
   42,233x = 66,868.50 × 66,868.50
4. Step 4: Simplify right side
   42,233x = 4,471,396,292.25
5. Step 5: Solve for x
   x = 4,471,396,292.25/42,233
6. Step 6: Final answer
   x = 105,874.47