Finding the Third Proportional to 266,517 and 577,320.75

Step by Step Solution

1. Step 1: Write the proportion equation
   266,517 : 577,320.75 = 577,320.75 : x
2. Step 2: Convert to fraction form
   266,517/577,320.75 = 577,320.75/x
3. Step 3: Cross multiply
   266,517x = 577,320.75 × 577,320.75
4. Step 4: Simplify right side
   266,517x = 333,299,248,380.56
5. Step 5: Solve for x
   x = 333,299,248,380.56/266,517
6. Step 6: Final answer
   x = 1,250,574.07