Finding the Third Proportional to 619,842 and 1,357,620

Step by Step Solution

1. Step 1: Write the proportion equation
   619,842 : 1,357,620 = 1,357,620 : x
2. Step 2: Convert to fraction form
   619,842/1,357,620 = 1,357,620/x
3. Step 3: Cross multiply
   619,842x = 1,357,620 × 1,357,620
4. Step 4: Simplify right side
   619,842x = 1,843,132,064,400
5. Step 5: Solve for x
   x = 1,843,132,064,400/619,842
6. Step 6: Final answer
   x = 2,973,551.43