Finding the Third Proportional to 130,516 and 285,004

Step by Step Solution

1. Step 1: Write the proportion equation
   130,516 : 285,004 = 285,004 : x
2. Step 2: Convert to fraction form
   130,516/285,004 = 285,004/x
3. Step 3: Cross multiply
   130,516x = 285,004 × 285,004
4. Step 4: Simplify right side
   130,516x = 81,227,280,016
5. Step 5: Solve for x
   x = 81,227,280,016/130,516
6. Step 6: Final answer
   x = 622,354.96