Finding the Third Proportional to 42,890.50 and 65,065

Step by Step Solution

1. Step 1: Write the proportion equation
   42,890.50 : 65,065 = 65,065 : x
2. Step 2: Convert to fraction form
   42,890.50/65,065 = 65,065/x
3. Step 3: Cross multiply
   42,890.50x = 65,065 × 65,065
4. Step 4: Simplify right side
   42,890.50x = 4,233,454,225
5. Step 5: Solve for x
   x = 4,233,454,225/42,890.50
6. Step 6: Final answer
   x = 98,703.77