Finding the Third Proportional to 478,672 and 973,040

Step by Step Solution

1. Step 1: Write the proportion equation
   478,672 : 973,040 = 973,040 : x
2. Step 2: Convert to fraction form
   478,672/973,040 = 973,040/x
3. Step 3: Cross multiply
   478,672x = 973,040 × 973,040
4. Step 4: Simplify right side
   478,672x = 946,806,841,600
5. Step 5: Solve for x
   x = 946,806,841,600/478,672
6. Step 6: Final answer
   x = 1,977,986.68