Finding the Third Proportional to 187,318 and 401,433.50

Step by Step Solution

1. Step 1: Write the proportion equation
   187,318 : 401,433.50 = 401,433.50 : x
2. Step 2: Convert to fraction form
   187,318/401,433.50 = 401,433.50/x
3. Step 3: Cross multiply
   187,318x = 401,433.50 × 401,433.50
4. Step 4: Simplify right side
   187,318x = 161,148,854,922.25
5. Step 5: Solve for x
   x = 161,148,854,922.25/187,318
6. Step 6: Final answer
   x = 860,295.62