Finding the Third Proportional to 217,038 and 470,160

Step by Step Solution

1. Step 1: Write the proportion equation
   217,038 : 470,160 = 470,160 : x
2. Step 2: Convert to fraction form
   217,038/470,160 = 470,160/x
3. Step 3: Cross multiply
   217,038x = 470,160 × 470,160
4. Step 4: Simplify right side
   217,038x = 221,050,425,600
5. Step 5: Solve for x
   x = 221,050,425,600/217,038
6. Step 6: Final answer
   x = 1,018,487.20