Finding the Third Proportional to 15,120 and 23,200.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,120 : 23,200.50 = 23,200.50 : x
2. Step 2: Convert to fraction form
   15,120/23,200.50 = 23,200.50/x
3. Step 3: Cross multiply
   15,120x = 23,200.50 × 23,200.50
4. Step 4: Simplify right side
   15,120x = 538,263,200.25
5. Step 5: Solve for x
   x = 538,263,200.25/15,120
6. Step 6: Final answer
   x = 35,599.42