Finding the Third Proportional to 917,788 and 1,968,432

Step by Step Solution

1. Step 1: Write the proportion equation
   917,788 : 1,968,432 = 1,968,432 : x
2. Step 2: Convert to fraction form
   917,788/1,968,432 = 1,968,432/x
3. Step 3: Cross multiply
   917,788x = 1,968,432 × 1,968,432
4. Step 4: Simplify right side
   917,788x = 3,874,724,538,624
5. Step 5: Solve for x
   x = 3,874,724,538,624/917,788
6. Step 6: Final answer
   x = 4,221,807.80