Finding the Third Proportional to 216,272 and 474,646

Step by Step Solution

1. Step 1: Write the proportion equation
   216,272 : 474,646 = 474,646 : x
2. Step 2: Convert to fraction form
   216,272/474,646 = 474,646/x
3. Step 3: Cross multiply
   216,272x = 474,646 × 474,646
4. Step 4: Simplify right side
   216,272x = 225,288,825,316
5. Step 5: Solve for x
   x = 225,288,825,316/216,272
6. Step 6: Final answer
   x = 1,041,692.06