Finding the Third Proportional to 900,696 and 1,978,539

Step by Step Solution

1. Step 1: Write the proportion equation
   900,696 : 1,978,539 = 1,978,539 : x
2. Step 2: Convert to fraction form
   900,696/1,978,539 = 1,978,539/x
3. Step 3: Cross multiply
   900,696x = 1,978,539 × 1,978,539
4. Step 4: Simplify right side
   900,696x = 3,914,616,574,521
5. Step 5: Solve for x
   x = 3,914,616,574,521/900,696
6. Step 6: Final answer
   x = 4,346,212.90