Finding the Third Proportional to 501,518 and 977,920

Step by Step Solution

1. Step 1: Write the proportion equation
   501,518 : 977,920 = 977,920 : x
2. Step 2: Convert to fraction form
   501,518/977,920 = 977,920/x
3. Step 3: Cross multiply
   501,518x = 977,920 × 977,920
4. Step 4: Simplify right side
   501,518x = 956,327,526,400
5. Step 5: Solve for x
   x = 956,327,526,400/501,518
6. Step 6: Final answer
   x = 1,906,865.81