Finding the Third Proportional to 521,666 and 1,143,340

Step by Step Solution

1. Step 1: Write the proportion equation
   521,666 : 1,143,340 = 1,143,340 : x
2. Step 2: Convert to fraction form
   521,666/1,143,340 = 1,143,340/x
3. Step 3: Cross multiply
   521,666x = 1,143,340 × 1,143,340
4. Step 4: Simplify right side
   521,666x = 1,307,226,355,600
5. Step 5: Solve for x
   x = 1,307,226,355,600/521,666
6. Step 6: Final answer
   x = 2,505,868.42