Finding the Third Proportional to 552,513.75 and 779,870.25

Step by Step Solution

1. Step 1: Write the proportion equation
   552,513.75 : 779,870.25 = 779,870.25 : x
2. Step 2: Convert to fraction form
   552,513.75/779,870.25 = 779,870.25/x
3. Step 3: Cross multiply
   552,513.75x = 779,870.25 × 779,870.25
4. Step 4: Simplify right side
   552,513.75x = 608,197,606,835.06
5. Step 5: Solve for x
   x = 608,197,606,835.06/552,513.75
6. Step 6: Final answer
   x = 1,100,782.75