Finding the Third Proportional to 280,020 and 601,573.50

Step by Step Solution

1. Step 1: Write the proportion equation
   280,020 : 601,573.50 = 601,573.50 : x
2. Step 2: Convert to fraction form
   280,020/601,573.50 = 601,573.50/x
3. Step 3: Cross multiply
   280,020x = 601,573.50 × 601,573.50
4. Step 4: Simplify right side
   280,020x = 361,890,675,902.25
5. Step 5: Solve for x
   x = 361,890,675,902.25/280,020
6. Step 6: Final answer
   x = 1,292,374.39