Finding the Third Proportional to 911,439 and 1,994,409

Step by Step Solution

1. Step 1: Write the proportion equation
   911,439 : 1,994,409 = 1,994,409 : x
2. Step 2: Convert to fraction form
   911,439/1,994,409 = 1,994,409/x
3. Step 3: Cross multiply
   911,439x = 1,994,409 × 1,994,409
4. Step 4: Simplify right side
   911,439x = 3,977,667,259,281
5. Step 5: Solve for x
   x = 3,977,667,259,281/911,439
6. Step 6: Final answer
   x = 4,364,161.79