Finding the Third Proportional to 758,078 and 1,642,200

Step by Step Solution

1. Step 1: Write the proportion equation
   758,078 : 1,642,200 = 1,642,200 : x
2. Step 2: Convert to fraction form
   758,078/1,642,200 = 1,642,200/x
3. Step 3: Cross multiply
   758,078x = 1,642,200 × 1,642,200
4. Step 4: Simplify right side
   758,078x = 2,696,820,840,000
5. Step 5: Solve for x
   x = 2,696,820,840,000/758,078
6. Step 6: Final answer
   x = 3,557,445.07