Finding the Third Proportional to 1,868,580 and 4,086,126

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868,580 : 4,086,126 = 4,086,126 : x
2. Step 2: Convert to fraction form
   1,868,580/4,086,126 = 4,086,126/x
3. Step 3: Cross multiply
   1,868,580x = 4,086,126 × 4,086,126
4. Step 4: Simplify right side
   1,868,580x = 16,696,425,687,876
5. Step 5: Solve for x
   x = 16,696,425,687,876/1,868,580
6. Step 6: Final answer
   x = 8,935,355.02