Finding the Third Proportional to 17,340.75 and 42,781.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,340.75 : 42,781.50 = 42,781.50 : x
2. Step 2: Convert to fraction form
   17,340.75/42,781.50 = 42,781.50/x
3. Step 3: Cross multiply
   17,340.75x = 42,781.50 × 42,781.50
4. Step 4: Simplify right side
   17,340.75x = 1,830,256,742.25
5. Step 5: Solve for x
   x = 1,830,256,742.25/17,340.75
6. Step 6: Final answer
   x = 105,546.57