Finding the Third Proportional to 187,258.50 and 404,445

Step by Step Solution

1. Step 1: Write the proportion equation
   187,258.50 : 404,445 = 404,445 : x
2. Step 2: Convert to fraction form
   187,258.50/404,445 = 404,445/x
3. Step 3: Cross multiply
   187,258.50x = 404,445 × 404,445
4. Step 4: Simplify right side
   187,258.50x = 163,575,758,025
5. Step 5: Solve for x
   x = 163,575,758,025/187,258.50
6. Step 6: Final answer
   x = 873,529.15