Finding the Third Proportional to 230,310 and 349,002

Step by Step Solution

1. Step 1: Write the proportion equation
   230,310 : 349,002 = 349,002 : x
2. Step 2: Convert to fraction form
   230,310/349,002 = 349,002/x
3. Step 3: Cross multiply
   230,310x = 349,002 × 349,002
4. Step 4: Simplify right side
   230,310x = 121,802,396,004
5. Step 5: Solve for x
   x = 121,802,396,004/230,310
6. Step 6: Final answer
   x = 528,862.82