Finding the Third Proportional to 281,781 and 664,498.50

Step by Step Solution

1. Step 1: Write the proportion equation
   281,781 : 664,498.50 = 664,498.50 : x
2. Step 2: Convert to fraction form
   281,781/664,498.50 = 664,498.50/x
3. Step 3: Cross multiply
   281,781x = 664,498.50 × 664,498.50
4. Step 4: Simplify right side
   281,781x = 441,558,256,502.25
5. Step 5: Solve for x
   x = 441,558,256,502.25/281,781
6. Step 6: Final answer
   x = 1,567,026.37