Finding the Third Proportional to 317,185.50 and 432,026

Step by Step Solution

1. Step 1: Write the proportion equation
   317,185.50 : 432,026 = 432,026 : x
2. Step 2: Convert to fraction form
   317,185.50/432,026 = 432,026/x
3. Step 3: Cross multiply
   317,185.50x = 432,026 × 432,026
4. Step 4: Simplify right side
   317,185.50x = 186,646,464,676
5. Step 5: Solve for x
   x = 186,646,464,676/317,185.50
6. Step 6: Final answer
   x = 588,445.77