Finding the Third Proportional to 38,920.50 and 59,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   38,920.50 : 59,143.50 = 59,143.50 : x
2. Step 2: Convert to fraction form
   38,920.50/59,143.50 = 59,143.50/x
3. Step 3: Cross multiply
   38,920.50x = 59,143.50 × 59,143.50
4. Step 4: Simplify right side
   38,920.50x = 3,497,953,592.25
5. Step 5: Solve for x
   x = 3,497,953,592.25/38,920.50
6. Step 6: Final answer
   x = 89,874.32