Finding the Third Proportional to 1,865,538 and 4,078,836

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865,538 : 4,078,836 = 4,078,836 : x
2. Step 2: Convert to fraction form
   1,865,538/4,078,836 = 4,078,836/x
3. Step 3: Cross multiply
   1,865,538x = 4,078,836 × 4,078,836
4. Step 4: Simplify right side
   1,865,538x = 16,636,903,114,896
5. Step 5: Solve for x
   x = 16,636,903,114,896/1,865,538
6. Step 6: Final answer
   x = 8,918,018.89