Finding the Third Proportional to 17,916.50 and 38,942.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,916.50 : 38,942.50 = 38,942.50 : x
2. Step 2: Convert to fraction form
   17,916.50/38,942.50 = 38,942.50/x
3. Step 3: Cross multiply
   17,916.50x = 38,942.50 × 38,942.50
4. Step 4: Simplify right side
   17,916.50x = 1,516,518,306.25
5. Step 5: Solve for x
   x = 1,516,518,306.25/17,916.50
6. Step 6: Final answer
   x = 84,643.67