Finding the Third Proportional to 657,243 and 1,345,590

Step by Step Solution

1. Step 1: Write the proportion equation
   657,243 : 1,345,590 = 1,345,590 : x
2. Step 2: Convert to fraction form
   657,243/1,345,590 = 1,345,590/x
3. Step 3: Cross multiply
   657,243x = 1,345,590 × 1,345,590
4. Step 4: Simplify right side
   657,243x = 1,810,612,448,100
5. Step 5: Solve for x
   x = 1,810,612,448,100/657,243
6. Step 6: Final answer
   x = 2,754,860.00