Finding the Third Proportional to 39,123 and 62,990.16

Step by Step Solution

1. Step 1: Write the proportion equation
   39,123 : 62,990.16 = 62,990.16 : x
2. Step 2: Convert to fraction form
   39,123/62,990.16 = 62,990.16/x
3. Step 3: Cross multiply
   39,123x = 62,990.16 × 62,990.16
4. Step 4: Simplify right side
   39,123x = 3,967,759,784.40
5. Step 5: Solve for x
   x = 3,967,759,784.40/39,123
6. Step 6: Final answer
   x = 101,417.57