Finding the Third Proportional to 90,434.50 and 191,018.75

Step by Step Solution

1. Step 1: Write the proportion equation
   90,434.50 : 191,018.75 = 191,018.75 : x
2. Step 2: Convert to fraction form
   90,434.50/191,018.75 = 191,018.75/x
3. Step 3: Cross multiply
   90,434.50x = 191,018.75 × 191,018.75
4. Step 4: Simplify right side
   90,434.50x = 36,488,162,851.56
5. Step 5: Solve for x
   x = 36,488,162,851.56/90,434.50
6. Step 6: Final answer
   x = 403,476.14