Finding the Third Proportional to 556,388 and 1,201,288

Step by Step Solution

1. Step 1: Write the proportion equation
   556,388 : 1,201,288 = 1,201,288 : x
2. Step 2: Convert to fraction form
   556,388/1,201,288 = 1,201,288/x
3. Step 3: Cross multiply
   556,388x = 1,201,288 × 1,201,288
4. Step 4: Simplify right side
   556,388x = 1,443,092,858,944
5. Step 5: Solve for x
   x = 1,443,092,858,944/556,388
6. Step 6: Final answer
   x = 2,593,680.77