Finding the Third Proportional to 247,099.50 and 515,641.50

Step by Step Solution

1. Step 1: Write the proportion equation
   247,099.50 : 515,641.50 = 515,641.50 : x
2. Step 2: Convert to fraction form
   247,099.50/515,641.50 = 515,641.50/x
3. Step 3: Cross multiply
   247,099.50x = 515,641.50 × 515,641.50
4. Step 4: Simplify right side
   247,099.50x = 265,886,156,522.25
5. Step 5: Solve for x
   x = 265,886,156,522.25/247,099.50
6. Step 6: Final answer
   x = 1,076,028.71