Finding the Third Proportional to 317,185 and 432,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   317,185 : 432,025.50 = 432,025.50 : x
2. Step 2: Convert to fraction form
   317,185/432,025.50 = 432,025.50/x
3. Step 3: Cross multiply
   317,185x = 432,025.50 × 432,025.50
4. Step 4: Simplify right side
   317,185x = 186,646,032,650.25
5. Step 5: Solve for x
   x = 186,646,032,650.25/317,185
6. Step 6: Final answer
   x = 588,445.33