Finding the Third Proportional to 154,290 and 234,985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,290 : 234,985.50 = 234,985.50 : x
2. Step 2: Convert to fraction form
   154,290/234,985.50 = 234,985.50/x
3. Step 3: Cross multiply
   154,290x = 234,985.50 × 234,985.50
4. Step 4: Simplify right side
   154,290x = 55,218,185,210.25
5. Step 5: Solve for x
   x = 55,218,185,210.25/154,290
6. Step 6: Final answer
   x = 357,885.70