Finding the Third Proportional to 191,785.50 and 403,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,785.50 : 403,789.50 = 403,789.50 : x
2. Step 2: Convert to fraction form
   191,785.50/403,789.50 = 403,789.50/x
3. Step 3: Cross multiply
   191,785.50x = 403,789.50 × 403,789.50
4. Step 4: Simplify right side
   191,785.50x = 163,045,960,310.25
5. Step 5: Solve for x
   x = 163,045,960,310.25/191,785.50
6. Step 6: Final answer
   x = 850,147.48