Finding the Third Proportional to 1,678,400 and 2,531,534

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678,400 : 2,531,534 = 2,531,534 : x
2. Step 2: Convert to fraction form
   1,678,400/2,531,534 = 2,531,534/x
3. Step 3: Cross multiply
   1,678,400x = 2,531,534 × 2,531,534
4. Step 4: Simplify right side
   1,678,400x = 6,408,664,393,156
5. Step 5: Solve for x
   x = 6,408,664,393,156/1,678,400
6. Step 6: Final answer
   x = 3,818,317.68