Finding the Third Proportional to 989,176 and 1,488,404

Step by Step Solution

1. Step 1: Write the proportion equation
   989,176 : 1,488,404 = 1,488,404 : x
2. Step 2: Convert to fraction form
   989,176/1,488,404 = 1,488,404/x
3. Step 3: Cross multiply
   989,176x = 1,488,404 × 1,488,404
4. Step 4: Simplify right side
   989,176x = 2,215,346,467,216
5. Step 5: Solve for x
   x = 2,215,346,467,216/989,176
6. Step 6: Final answer
   x = 2,239,587.77