Finding the Third Proportional to 858,298 and 1,864,088

Step by Step Solution

1. Step 1: Write the proportion equation
   858,298 : 1,864,088 = 1,864,088 : x
2. Step 2: Convert to fraction form
   858,298/1,864,088 = 1,864,088/x
3. Step 3: Cross multiply
   858,298x = 1,864,088 × 1,864,088
4. Step 4: Simplify right side
   858,298x = 3,474,824,071,744
5. Step 5: Solve for x
   x = 3,474,824,071,744/858,298
6. Step 6: Final answer
   x = 4,048,505.38