Finding the Third Proportional to 90,339.75 and 191,524.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,339.75 : 191,524.50 = 191,524.50 : x
2. Step 2: Convert to fraction form
   90,339.75/191,524.50 = 191,524.50/x
3. Step 3: Cross multiply
   90,339.75x = 191,524.50 × 191,524.50
4. Step 4: Simplify right side
   90,339.75x = 36,681,634,100.25
5. Step 5: Solve for x
   x = 36,681,634,100.25/90,339.75
6. Step 6: Final answer
   x = 406,040.91