Finding the Third Proportional to 615,095 and 828,039.50

Step by Step Solution

1. Step 1: Write the proportion equation
   615,095 : 828,039.50 = 828,039.50 : x
2. Step 2: Convert to fraction form
   615,095/828,039.50 = 828,039.50/x
3. Step 3: Cross multiply
   615,095x = 828,039.50 × 828,039.50
4. Step 4: Simplify right side
   615,095x = 685,649,413,560.25
5. Step 5: Solve for x
   x = 685,649,413,560.25/615,095
6. Step 6: Final answer
   x = 1,114,704.91