Finding the Third Proportional to 743,684 and 1,117,222

Step by Step Solution

1. Step 1: Write the proportion equation
   743,684 : 1,117,222 = 1,117,222 : x
2. Step 2: Convert to fraction form
   743,684/1,117,222 = 1,117,222/x
3. Step 3: Cross multiply
   743,684x = 1,117,222 × 1,117,222
4. Step 4: Simplify right side
   743,684x = 1,248,184,997,284
5. Step 5: Solve for x
   x = 1,248,184,997,284/743,684
6. Step 6: Final answer
   x = 1,678,380.87