Finding the Third Proportional to 777,620 and 1,111,998

Step by Step Solution

1. Step 1: Write the proportion equation
   777,620 : 1,111,998 = 1,111,998 : x
2. Step 2: Convert to fraction form
   777,620/1,111,998 = 1,111,998/x
3. Step 3: Cross multiply
   777,620x = 1,111,998 × 1,111,998
4. Step 4: Simplify right side
   777,620x = 1,236,539,552,004
5. Step 5: Solve for x
   x = 1,236,539,552,004/777,620
6. Step 6: Final answer
   x = 1,590,159.14