Finding the Third Proportional to 42,855.33 and 65,370.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,855.33 : 65,370.80 = 65,370.80 : x
2. Step 2: Convert to fraction form
   42,855.33/65,370.80 = 65,370.80/x
3. Step 3: Cross multiply
   42,855.33x = 65,370.80 × 65,370.80
4. Step 4: Simplify right side
   42,855.33x = 4,273,341,084.07
5. Step 5: Solve for x
   x = 4,273,341,084.07/42,855.33
6. Step 6: Final answer
   x = 99,715.51