Finding the Third Proportional to 454,818 and 706,209.75

Step by Step Solution

1. Step 1: Write the proportion equation
   454,818 : 706,209.75 = 706,209.75 : x
2. Step 2: Convert to fraction form
   454,818/706,209.75 = 706,209.75/x
3. Step 3: Cross multiply
   454,818x = 706,209.75 × 706,209.75
4. Step 4: Simplify right side
   454,818x = 498,732,210,995.06
5. Step 5: Solve for x
   x = 498,732,210,995.06/454,818
6. Step 6: Final answer
   x = 1,096,553.37