Finding the Third Proportional to 692,380 and 1,439,799

Step by Step Solution

1. Step 1: Write the proportion equation
   692,380 : 1,439,799 = 1,439,799 : x
2. Step 2: Convert to fraction form
   692,380/1,439,799 = 1,439,799/x
3. Step 3: Cross multiply
   692,380x = 1,439,799 × 1,439,799
4. Step 4: Simplify right side
   692,380x = 2,073,021,160,401
5. Step 5: Solve for x
   x = 2,073,021,160,401/692,380
6. Step 6: Final answer
   x = 2,994,051.19