Finding the Third Proportional to 184,920 and 398,755.50

Step by Step Solution

1. Step 1: Write the proportion equation
   184,920 : 398,755.50 = 398,755.50 : x
2. Step 2: Convert to fraction form
   184,920/398,755.50 = 398,755.50/x
3. Step 3: Cross multiply
   184,920x = 398,755.50 × 398,755.50
4. Step 4: Simplify right side
   184,920x = 159,005,948,780.25
5. Step 5: Solve for x
   x = 159,005,948,780.25/184,920
6. Step 6: Final answer
   x = 859,863.45