Finding the Third Proportional to 218,077.31 and 476,659.69

Step by Step Solution

1. Step 1: Write the proportion equation
   218,077.31 : 476,659.69 = 476,659.69 : x
2. Step 2: Convert to fraction form
   218,077.31/476,659.69 = 476,659.69/x
3. Step 3: Cross multiply
   218,077.31x = 476,659.69 × 476,659.69
4. Step 4: Simplify right side
   218,077.31x = 227,204,457,687.60
5. Step 5: Solve for x
   x = 227,204,457,687.60/218,077.31
6. Step 6: Final answer
   x = 1,041,852.80