Finding the Third Proportional to 520,256.25 and 1,139,933.25

Step by Step Solution

1. Step 1: Write the proportion equation
   520,256.25 : 1,139,933.25 = 1,139,933.25 : x
2. Step 2: Convert to fraction form
   520,256.25/1,139,933.25 = 1,139,933.25/x
3. Step 3: Cross multiply
   520,256.25x = 1,139,933.25 × 1,139,933.25
4. Step 4: Simplify right side
   520,256.25x = 1,299,447,814,455.56
5. Step 5: Solve for x
   x = 1,299,447,814,455.56/520,256.25
6. Step 6: Final answer
   x = 2,497,707.26