Finding the Third Proportional to 216,526 and 472,400

Step by Step Solution

1. Step 1: Write the proportion equation
   216,526 : 472,400 = 472,400 : x
2. Step 2: Convert to fraction form
   216,526/472,400 = 472,400/x
3. Step 3: Cross multiply
   216,526x = 472,400 × 472,400
4. Step 4: Simplify right side
   216,526x = 223,161,760,000
5. Step 5: Solve for x
   x = 223,161,760,000/216,526
6. Step 6: Final answer
   x = 1,030,646.48