Finding the Third Proportional to 42,051 and 66,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,051 : 66,868.50 = 66,868.50 : x
2. Step 2: Convert to fraction form
   42,051/66,868.50 = 66,868.50/x
3. Step 3: Cross multiply
   42,051x = 66,868.50 × 66,868.50
4. Step 4: Simplify right side
   42,051x = 4,471,396,292.25
5. Step 5: Solve for x
   x = 4,471,396,292.25/42,051
6. Step 6: Final answer
   x = 106,332.70