Finding the Third Proportional to 911,388 and 1,994,412

Step by Step Solution

1. Step 1: Write the proportion equation
   911,388 : 1,994,412 = 1,994,412 : x
2. Step 2: Convert to fraction form
   911,388/1,994,412 = 1,994,412/x
3. Step 3: Cross multiply
   911,388x = 1,994,412 × 1,994,412
4. Step 4: Simplify right side
   911,388x = 3,977,679,225,744
5. Step 5: Solve for x
   x = 3,977,679,225,744/911,388
6. Step 6: Final answer
   x = 4,364,419.13