Finding the Third Proportional to 69,123 and 103,660.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,123 : 103,660.50 = 103,660.50 : x
2. Step 2: Convert to fraction form
   69,123/103,660.50 = 103,660.50/x
3. Step 3: Cross multiply
   69,123x = 103,660.50 × 103,660.50
4. Step 4: Simplify right side
   69,123x = 10,745,499,260.25
5. Step 5: Solve for x
   x = 10,745,499,260.25/69,123
6. Step 6: Final answer
   x = 155,454.76