Finding the Third Proportional to 187,770 and 417,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   187,770 : 417,520.50 = 417,520.50 : x
2. Step 2: Convert to fraction form
   187,770/417,520.50 = 417,520.50/x
3. Step 3: Cross multiply
   187,770x = 417,520.50 × 417,520.50
4. Step 4: Simplify right side
   187,770x = 174,323,367,920.25
5. Step 5: Solve for x
   x = 174,323,367,920.25/187,770
6. Step 6: Final answer
   x = 928,387.75