Finding the Third Proportional to 380,064 and 803,040

Step by Step Solution

1. Step 1: Write the proportion equation
   380,064 : 803,040 = 803,040 : x
2. Step 2: Convert to fraction form
   380,064/803,040 = 803,040/x
3. Step 3: Cross multiply
   380,064x = 803,040 × 803,040
4. Step 4: Simplify right side
   380,064x = 644,873,241,600
5. Step 5: Solve for x
   x = 644,873,241,600/380,064
6. Step 6: Final answer
   x = 1,696,749.08