Finding the Third Proportional to 917,788 and 1,968,434

Step by Step Solution

1. Step 1: Write the proportion equation
   917,788 : 1,968,434 = 1,968,434 : x
2. Step 2: Convert to fraction form
   917,788/1,968,434 = 1,968,434/x
3. Step 3: Cross multiply
   917,788x = 1,968,434 × 1,968,434
4. Step 4: Simplify right side
   917,788x = 3,874,732,412,356
5. Step 5: Solve for x
   x = 3,874,732,412,356/917,788
6. Step 6: Final answer
   x = 4,221,816.38