Finding the Third Proportional to 921,196 and 1,355,449

Step by Step Solution

1. Step 1: Write the proportion equation
   921,196 : 1,355,449 = 1,355,449 : x
2. Step 2: Convert to fraction form
   921,196/1,355,449 = 1,355,449/x
3. Step 3: Cross multiply
   921,196x = 1,355,449 × 1,355,449
4. Step 4: Simplify right side
   921,196x = 1,837,241,991,601
5. Step 5: Solve for x
   x = 1,837,241,991,601/921,196
6. Step 6: Final answer
   x = 1,994,409.43