Finding the Third Proportional to 312,216 and 483,162

Step by Step Solution

1. Step 1: Write the proportion equation
   312,216 : 483,162 = 483,162 : x
2. Step 2: Convert to fraction form
   312,216/483,162 = 483,162/x
3. Step 3: Cross multiply
   312,216x = 483,162 × 483,162
4. Step 4: Simplify right side
   312,216x = 233,445,518,244
5. Step 5: Solve for x
   x = 233,445,518,244/312,216
6. Step 6: Final answer
   x = 747,705.17