Finding the Third Proportional to 10,458 and 15,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,458 : 15,112.50 = 15,112.50 : x
2. Step 2: Convert to fraction form
   10,458/15,112.50 = 15,112.50/x
3. Step 3: Cross multiply
   10,458x = 15,112.50 × 15,112.50
4. Step 4: Simplify right side
   10,458x = 228,387,656.25
5. Step 5: Solve for x
   x = 228,387,656.25/10,458
6. Step 6: Final answer
   x = 21,838.56