Finding the Third Proportional to 10,788 and 14,398.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,788 : 14,398.50 = 14,398.50 : x
2. Step 2: Convert to fraction form
   10,788/14,398.50 = 14,398.50/x
3. Step 3: Cross multiply
   10,788x = 14,398.50 × 14,398.50
4. Step 4: Simplify right side
   10,788x = 207,316,802.25
5. Step 5: Solve for x
   x = 207,316,802.25/10,788
6. Step 6: Final answer
   x = 19,217.35