Finding the Third Proportional to 1,890,064 and 4,042,400

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890,064 : 4,042,400 = 4,042,400 : x
2. Step 2: Convert to fraction form
   1,890,064/4,042,400 = 4,042,400/x
3. Step 3: Cross multiply
   1,890,064x = 4,042,400 × 4,042,400
4. Step 4: Simplify right side
   1,890,064x = 16,340,997,760,000
5. Step 5: Solve for x
   x = 16,340,997,760,000/1,890,064
6. Step 6: Final answer
   x = 8,645,737.80