Finding the Third Proportional to 248,499.56 and 374,820.75

Step by Step Solution

1. Step 1: Write the proportion equation
   248,499.56 : 374,820.75 = 374,820.75 : x
2. Step 2: Convert to fraction form
   248,499.56/374,820.75 = 374,820.75/x
3. Step 3: Cross multiply
   248,499.56x = 374,820.75 × 374,820.75
4. Step 4: Simplify right side
   248,499.56x = 140,490,594,630.56
5. Step 5: Solve for x
   x = 140,490,594,630.56/248,499.56
6. Step 6: Final answer
   x = 565,355.50