Finding the Third Proportional to 499,852.50 and 774,200.25

Step by Step Solution

1. Step 1: Write the proportion equation
   499,852.50 : 774,200.25 = 774,200.25 : x
2. Step 2: Convert to fraction form
   499,852.50/774,200.25 = 774,200.25/x
3. Step 3: Cross multiply
   499,852.50x = 774,200.25 × 774,200.25
4. Step 4: Simplify right side
   499,852.50x = 599,386,027,100.06
5. Step 5: Solve for x
   x = 599,386,027,100.06/499,852.50
6. Step 6: Final answer
   x = 1,199,125.80