Finding the Third Proportional to 619,371 and 1,356,840

Step by Step Solution

1. Step 1: Write the proportion equation
   619,371 : 1,356,840 = 1,356,840 : x
2. Step 2: Convert to fraction form
   619,371/1,356,840 = 1,356,840/x
3. Step 3: Cross multiply
   619,371x = 1,356,840 × 1,356,840
4. Step 4: Simplify right side
   619,371x = 1,841,014,785,600
5. Step 5: Solve for x
   x = 1,841,014,785,600/619,371
6. Step 6: Final answer
   x = 2,972,394.23