Finding the Third Proportional to 154,128 and 230,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,128 : 230,152.50 = 230,152.50 : x
2. Step 2: Convert to fraction form
   154,128/230,152.50 = 230,152.50/x
3. Step 3: Cross multiply
   154,128x = 230,152.50 × 230,152.50
4. Step 4: Simplify right side
   154,128x = 52,970,173,256.25
5. Step 5: Solve for x
   x = 52,970,173,256.25/154,128
6. Step 6: Final answer
   x = 343,676.51