Finding the Third Proportional to 654,120 and 1,387,404

Step by Step Solution

1. Step 1: Write the proportion equation
   654,120 : 1,387,404 = 1,387,404 : x
2. Step 2: Convert to fraction form
   654,120/1,387,404 = 1,387,404/x
3. Step 3: Cross multiply
   654,120x = 1,387,404 × 1,387,404
4. Step 4: Simplify right side
   654,120x = 1,924,889,859,216
5. Step 5: Solve for x
   x = 1,924,889,859,216/654,120
6. Step 6: Final answer
   x = 2,942,716.72