Finding the Third Proportional to 774,380 and 1,173,243

Step by Step Solution

1. Step 1: Write the proportion equation
   774,380 : 1,173,243 = 1,173,243 : x
2. Step 2: Convert to fraction form
   774,380/1,173,243 = 1,173,243/x
3. Step 3: Cross multiply
   774,380x = 1,173,243 × 1,173,243
4. Step 4: Simplify right side
   774,380x = 1,376,499,137,049
5. Step 5: Solve for x
   x = 1,376,499,137,049/774,380
6. Step 6: Final answer
   x = 1,777,549.96