Finding the Third Proportional to 499,761 and 712,258.50

Step by Step Solution

1. Step 1: Write the proportion equation
   499,761 : 712,258.50 = 712,258.50 : x
2. Step 2: Convert to fraction form
   499,761/712,258.50 = 712,258.50/x
3. Step 3: Cross multiply
   499,761x = 712,258.50 × 712,258.50
4. Step 4: Simplify right side
   499,761x = 507,312,170,822.25
5. Step 5: Solve for x
   x = 507,312,170,822.25/499,761
6. Step 6: Final answer
   x = 1,015,109.56