Finding the Third Proportional to 42,781.50 and 103,065.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,781.50 : 103,065.75 = 103,065.75 : x
2. Step 2: Convert to fraction form
   42,781.50/103,065.75 = 103,065.75/x
3. Step 3: Cross multiply
   42,781.50x = 103,065.75 × 103,065.75
4. Step 4: Simplify right side
   42,781.50x = 10,622,548,823.06
5. Step 5: Solve for x
   x = 10,622,548,823.06/42,781.50
6. Step 6: Final answer
   x = 248,297.72