Finding the Third Proportional to 618,262 and 1,345,396

Step by Step Solution

1. Step 1: Write the proportion equation
   618,262 : 1,345,396 = 1,345,396 : x
2. Step 2: Convert to fraction form
   618,262/1,345,396 = 1,345,396/x
3. Step 3: Cross multiply
   618,262x = 1,345,396 × 1,345,396
4. Step 4: Simplify right side
   618,262x = 1,810,090,396,816
5. Step 5: Solve for x
   x = 1,810,090,396,816/618,262
6. Step 6: Final answer
   x = 2,927,707.67