Finding the Third Proportional to 240,352 and 556,404

Step by Step Solution

1. Step 1: Write the proportion equation
   240,352 : 556,404 = 556,404 : x
2. Step 2: Convert to fraction form
   240,352/556,404 = 556,404/x
3. Step 3: Cross multiply
   240,352x = 556,404 × 556,404
4. Step 4: Simplify right side
   240,352x = 309,585,411,216
5. Step 5: Solve for x
   x = 309,585,411,216/240,352
6. Step 6: Final answer
   x = 1,288,050.07