Finding the Third Proportional to 191,315.75 and 417,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,315.75 : 417,078.50 = 417,078.50 : x
2. Step 2: Convert to fraction form
   191,315.75/417,078.50 = 417,078.50/x
3. Step 3: Cross multiply
   191,315.75x = 417,078.50 × 417,078.50
4. Step 4: Simplify right side
   191,315.75x = 173,954,475,162.25
5. Step 5: Solve for x
   x = 173,954,475,162.25/191,315.75
6. Step 6: Final answer
   x = 909,253.29