Finding the Third Proportional to 216,938 and 470,372

Step by Step Solution

1. Step 1: Write the proportion equation
   216,938 : 470,372 = 470,372 : x
2. Step 2: Convert to fraction form
   216,938/470,372 = 470,372/x
3. Step 3: Cross multiply
   216,938x = 470,372 × 470,372
4. Step 4: Simplify right side
   216,938x = 221,249,818,384
5. Step 5: Solve for x
   x = 221,249,818,384/216,938
6. Step 6: Final answer
   x = 1,019,875.81