Finding the Third Proportional to 245,433 and 345,541.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,433 : 345,541.50 = 345,541.50 : x
2. Step 2: Convert to fraction form
   245,433/345,541.50 = 345,541.50/x
3. Step 3: Cross multiply
   245,433x = 345,541.50 × 345,541.50
4. Step 4: Simplify right side
   245,433x = 119,398,928,222.25
5. Step 5: Solve for x
   x = 119,398,928,222.25/245,433
6. Step 6: Final answer
   x = 486,482.78