Finding the Third Proportional to 639,752 and 1,358,224

Step by Step Solution

1. Step 1: Write the proportion equation
   639,752 : 1,358,224 = 1,358,224 : x
2. Step 2: Convert to fraction form
   639,752/1,358,224 = 1,358,224/x
3. Step 3: Cross multiply
   639,752x = 1,358,224 × 1,358,224
4. Step 4: Simplify right side
   639,752x = 1,844,772,434,176
5. Step 5: Solve for x
   x = 1,844,772,434,176/639,752
6. Step 6: Final answer
   x = 2,883,574.31