Finding the Third Proportional to 279,814.50 and 609,282

Step by Step Solution

1. Step 1: Write the proportion equation
   279,814.50 : 609,282 = 609,282 : x
2. Step 2: Convert to fraction form
   279,814.50/609,282 = 609,282/x
3. Step 3: Cross multiply
   279,814.50x = 609,282 × 609,282
4. Step 4: Simplify right side
   279,814.50x = 371,224,555,524
5. Step 5: Solve for x
   x = 371,224,555,524/279,814.50
6. Step 6: Final answer
   x = 1,326,680.91