Finding the Third Proportional to 185,388 and 406,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   185,388 : 406,870.50 = 406,870.50 : x
2. Step 2: Convert to fraction form
   185,388/406,870.50 = 406,870.50/x
3. Step 3: Cross multiply
   185,388x = 406,870.50 × 406,870.50
4. Step 4: Simplify right side
   185,388x = 165,543,603,770.25
5. Step 5: Solve for x
   x = 165,543,603,770.25/185,388
6. Step 6: Final answer
   x = 892,957.49