Finding the Third Proportional to 215,186 and 469,738

Step by Step Solution

1. Step 1: Write the proportion equation
   215,186 : 469,738 = 469,738 : x
2. Step 2: Convert to fraction form
   215,186/469,738 = 469,738/x
3. Step 3: Cross multiply
   215,186x = 469,738 × 469,738
4. Step 4: Simplify right side
   215,186x = 220,653,788,644
5. Step 5: Solve for x
   x = 220,653,788,644/215,186
6. Step 6: Final answer
   x = 1,025,409.59