Finding the Third Proportional to 10,878.75 and 14,698.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,878.75 : 14,698.13 = 14,698.13 : x
2. Step 2: Convert to fraction form
   10,878.75/14,698.13 = 14,698.13/x
3. Step 3: Cross multiply
   10,878.75x = 14,698.13 × 14,698.13
4. Step 4: Simplify right side
   10,878.75x = 216,034,878.52
5. Step 5: Solve for x
   x = 216,034,878.52/10,878.75
6. Step 6: Final answer
   x = 19,858.43