Finding the Third Proportional to 216,142 and 471,272

Step by Step Solution

1. Step 1: Write the proportion equation
   216,142 : 471,272 = 471,272 : x
2. Step 2: Convert to fraction form
   216,142/471,272 = 471,272/x
3. Step 3: Cross multiply
   216,142x = 471,272 × 471,272
4. Step 4: Simplify right side
   216,142x = 222,097,297,984
5. Step 5: Solve for x
   x = 222,097,297,984/216,142
6. Step 6: Final answer
   x = 1,027,552.71