Finding the Third Proportional to 245,809 and 375,274.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,809 : 375,274.50 = 375,274.50 : x
2. Step 2: Convert to fraction form
   245,809/375,274.50 = 375,274.50/x
3. Step 3: Cross multiply
   245,809x = 375,274.50 × 375,274.50
4. Step 4: Simplify right side
   245,809x = 140,830,950,350.25
5. Step 5: Solve for x
   x = 140,830,950,350.25/245,809
6. Step 6: Final answer
   x = 572,928.37