Finding the Third Proportional to 228,565.13 and 354,402

Step by Step Solution

1. Step 1: Write the proportion equation
   228,565.13 : 354,402 = 354,402 : x
2. Step 2: Convert to fraction form
   228,565.13/354,402 = 354,402/x
3. Step 3: Cross multiply
   228,565.13x = 354,402 × 354,402
4. Step 4: Simplify right side
   228,565.13x = 125,600,777,604
5. Step 5: Solve for x
   x = 125,600,777,604/228,565.13
6. Step 6: Final answer
   x = 549,518.56