Finding the Third Proportional to 414,912 and 845,040

Step by Step Solution

1. Step 1: Write the proportion equation
   414,912 : 845,040 = 845,040 : x
2. Step 2: Convert to fraction form
   414,912/845,040 = 845,040/x
3. Step 3: Cross multiply
   414,912x = 845,040 × 845,040
4. Step 4: Simplify right side
   414,912x = 714,092,601,600
5. Step 5: Solve for x
   x = 714,092,601,600/414,912
6. Step 6: Final answer
   x = 1,721,070.01