Finding the Third Proportional to 618,260 and 1,345,392

Step by Step Solution

1. Step 1: Write the proportion equation
   618,260 : 1,345,392 = 1,345,392 : x
2. Step 2: Convert to fraction form
   618,260/1,345,392 = 1,345,392/x
3. Step 3: Cross multiply
   618,260x = 1,345,392 × 1,345,392
4. Step 4: Simplify right side
   618,260x = 1,810,079,633,664
5. Step 5: Solve for x
   x = 1,810,079,633,664/618,260
6. Step 6: Final answer
   x = 2,927,699.73