Finding the Third Proportional to 216,126 and 471,240

Step by Step Solution

1. Step 1: Write the proportion equation
   216,126 : 471,240 = 471,240 : x
2. Step 2: Convert to fraction form
   216,126/471,240 = 471,240/x
3. Step 3: Cross multiply
   216,126x = 471,240 × 471,240
4. Step 4: Simplify right side
   216,126x = 222,067,137,600
5. Step 5: Solve for x
   x = 222,067,137,600/216,126
6. Step 6: Final answer
   x = 1,027,489.23