Finding the Third Proportional to 187,749 and 391,036.50

Step by Step Solution

1. Step 1: Write the proportion equation
   187,749 : 391,036.50 = 391,036.50 : x
2. Step 2: Convert to fraction form
   187,749/391,036.50 = 391,036.50/x
3. Step 3: Cross multiply
   187,749x = 391,036.50 × 391,036.50
4. Step 4: Simplify right side
   187,749x = 152,909,544,332.25
5. Step 5: Solve for x
   x = 152,909,544,332.25/187,749
6. Step 6: Final answer
   x = 814,436.00