Finding the Third Proportional to 523,920 and 788,940

Step by Step Solution

1. Step 1: Write the proportion equation
   523,920 : 788,940 = 788,940 : x
2. Step 2: Convert to fraction form
   523,920/788,940 = 788,940/x
3. Step 3: Cross multiply
   523,920x = 788,940 × 788,940
4. Step 4: Simplify right side
   523,920x = 622,426,323,600
5. Step 5: Solve for x
   x = 622,426,323,600/523,920
6. Step 6: Final answer
   x = 1,188,017.87