Finding the Third Proportional to 619,396 and 1,340,168

Step by Step Solution

1. Step 1: Write the proportion equation
   619,396 : 1,340,168 = 1,340,168 : x
2. Step 2: Convert to fraction form
   619,396/1,340,168 = 1,340,168/x
3. Step 3: Cross multiply
   619,396x = 1,340,168 × 1,340,168
4. Step 4: Simplify right side
   619,396x = 1,796,050,268,224
5. Step 5: Solve for x
   x = 1,796,050,268,224/619,396
6. Step 6: Final answer
   x = 2,899,680.12