Finding the Third Proportional to 12,152 and 15,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,152 : 15,528.50 = 15,528.50 : x
2. Step 2: Convert to fraction form
   12,152/15,528.50 = 15,528.50/x
3. Step 3: Cross multiply
   12,152x = 15,528.50 × 15,528.50
4. Step 4: Simplify right side
   12,152x = 241,134,312.25
5. Step 5: Solve for x
   x = 241,134,312.25/12,152
6. Step 6: Final answer
   x = 19,843.18