Finding the Third Proportional to 218,142 and 475,704

Step by Step Solution

1. Step 1: Write the proportion equation
   218,142 : 475,704 = 475,704 : x
2. Step 2: Convert to fraction form
   218,142/475,704 = 475,704/x
3. Step 3: Cross multiply
   218,142x = 475,704 × 475,704
4. Step 4: Simplify right side
   218,142x = 226,294,295,616
5. Step 5: Solve for x
   x = 226,294,295,616/218,142
6. Step 6: Final answer
   x = 1,037,371.51