Finding the Third Proportional to 148,419 and 229,540.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,419 : 229,540.50 = 229,540.50 : x
2. Step 2: Convert to fraction form
   148,419/229,540.50 = 229,540.50/x
3. Step 3: Cross multiply
   148,419x = 229,540.50 × 229,540.50
4. Step 4: Simplify right side
   148,419x = 52,688,841,140.25
5. Step 5: Solve for x
   x = 52,688,841,140.25/148,419
6. Step 6: Final answer
   x = 355,000.65