Finding the Third Proportional to 190,107 and 403,555.50

Step by Step Solution

1. Step 1: Write the proportion equation
   190,107 : 403,555.50 = 403,555.50 : x
2. Step 2: Convert to fraction form
   190,107/403,555.50 = 403,555.50/x
3. Step 3: Cross multiply
   190,107x = 403,555.50 × 403,555.50
4. Step 4: Simplify right side
   190,107x = 162,857,041,580.25
5. Step 5: Solve for x
   x = 162,857,041,580.25/190,107
6. Step 6: Final answer
   x = 856,659.89