Finding the Third Proportional to 840,462 and 1,208,178

Step by Step Solution

1. Step 1: Write the proportion equation
   840,462 : 1,208,178 = 1,208,178 : x
2. Step 2: Convert to fraction form
   840,462/1,208,178 = 1,208,178/x
3. Step 3: Cross multiply
   840,462x = 1,208,178 × 1,208,178
4. Step 4: Simplify right side
   840,462x = 1,459,694,079,684
5. Step 5: Solve for x
   x = 1,459,694,079,684/840,462
6. Step 6: Final answer
   x = 1,736,775.82