Finding the Third Proportional to 224,760.75 and 478,128

Step by Step Solution

1. Step 1: Write the proportion equation
   224,760.75 : 478,128 = 478,128 : x
2. Step 2: Convert to fraction form
   224,760.75/478,128 = 478,128/x
3. Step 3: Cross multiply
   224,760.75x = 478,128 × 478,128
4. Step 4: Simplify right side
   224,760.75x = 228,606,384,384
5. Step 5: Solve for x
   x = 228,606,384,384/224,760.75
6. Step 6: Final answer
   x = 1,017,109.90