Finding the Third Proportional to 14,386.50 and 15,783.75

Step by Step Solution

1. Step 1: Write the proportion equation
   14,386.50 : 15,783.75 = 15,783.75 : x
2. Step 2: Convert to fraction form
   14,386.50/15,783.75 = 15,783.75/x
3. Step 3: Cross multiply
   14,386.50x = 15,783.75 × 15,783.75
4. Step 4: Simplify right side
   14,386.50x = 249,126,764.06
5. Step 5: Solve for x
   x = 249,126,764.06/14,386.50
6. Step 6: Final answer
   x = 17,316.70