Finding the Third Proportional to 187,758 and 391,047.75

Step by Step Solution

1. Step 1: Write the proportion equation
   187,758 : 391,047.75 = 391,047.75 : x
2. Step 2: Convert to fraction form
   187,758/391,047.75 = 391,047.75/x
3. Step 3: Cross multiply
   187,758x = 391,047.75 × 391,047.75
4. Step 4: Simplify right side
   187,758x = 152,918,342,780.06
5. Step 5: Solve for x
   x = 152,918,342,780.06/187,758
6. Step 6: Final answer
   x = 814,443.82