Finding the Third Proportional to 639,796 and 1,368,152

Step by Step Solution

1. Step 1: Write the proportion equation
   639,796 : 1,368,152 = 1,368,152 : x
2. Step 2: Convert to fraction form
   639,796/1,368,152 = 1,368,152/x
3. Step 3: Cross multiply
   639,796x = 1,368,152 × 1,368,152
4. Step 4: Simplify right side
   639,796x = 1,871,839,895,104
5. Step 5: Solve for x
   x = 1,871,839,895,104/639,796
6. Step 6: Final answer
   x = 2,925,682.40