Finding the Third Proportional to 215,419.50 and 469,476

Step by Step Solution

1. Step 1: Write the proportion equation
   215,419.50 : 469,476 = 469,476 : x
2. Step 2: Convert to fraction form
   215,419.50/469,476 = 469,476/x
3. Step 3: Cross multiply
   215,419.50x = 469,476 × 469,476
4. Step 4: Simplify right side
   215,419.50x = 220,407,714,576
5. Step 5: Solve for x
   x = 220,407,714,576/215,419.50
6. Step 6: Final answer
   x = 1,023,155.82