Finding the Third Proportional to 230,391 and 357,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   230,391 : 357,574.50 = 357,574.50 : x
2. Step 2: Convert to fraction form
   230,391/357,574.50 = 357,574.50/x
3. Step 3: Cross multiply
   230,391x = 357,574.50 × 357,574.50
4. Step 4: Simplify right side
   230,391x = 127,859,523,050.25
5. Step 5: Solve for x
   x = 127,859,523,050.25/230,391
6. Step 6: Final answer
   x = 554,967.52