Finding the Third Proportional to 283,797 and 620,878.50

Step by Step Solution

1. Step 1: Write the proportion equation
   283,797 : 620,878.50 = 620,878.50 : x
2. Step 2: Convert to fraction form
   283,797/620,878.50 = 620,878.50/x
3. Step 3: Cross multiply
   283,797x = 620,878.50 × 620,878.50
4. Step 4: Simplify right side
   283,797x = 385,490,111,762.25
5. Step 5: Solve for x
   x = 385,490,111,762.25/283,797
6. Step 6: Final answer
   x = 1,358,330.47