Finding the Third Proportional to 280,917 and 619,096.50

Step by Step Solution

1. Step 1: Write the proportion equation
   280,917 : 619,096.50 = 619,096.50 : x
2. Step 2: Convert to fraction form
   280,917/619,096.50 = 619,096.50/x
3. Step 3: Cross multiply
   280,917x = 619,096.50 × 619,096.50
4. Step 4: Simplify right side
   280,917x = 383,280,476,312.25
5. Step 5: Solve for x
   x = 383,280,476,312.25/280,917
6. Step 6: Final answer
   x = 1,364,390.47