Finding the Third Proportional to 182,818 and 407,648

Step by Step Solution

1. Step 1: Write the proportion equation
   182,818 : 407,648 = 407,648 : x
2. Step 2: Convert to fraction form
   182,818/407,648 = 407,648/x
3. Step 3: Cross multiply
   182,818x = 407,648 × 407,648
4. Step 4: Simplify right side
   182,818x = 166,176,891,904
5. Step 5: Solve for x
   x = 166,176,891,904/182,818
6. Step 6: Final answer
   x = 908,974.45