Finding the Third Proportional to 403,064.25 and 879,807

Step by Step Solution

1. Step 1: Write the proportion equation
   403,064.25 : 879,807 = 879,807 : x
2. Step 2: Convert to fraction form
   403,064.25/879,807 = 879,807/x
3. Step 3: Cross multiply
   403,064.25x = 879,807 × 879,807
4. Step 4: Simplify right side
   403,064.25x = 774,060,357,249
5. Step 5: Solve for x
   x = 774,060,357,249/403,064.25
6. Step 6: Final answer
   x = 1,920,439.13