Finding the Third Proportional to 696,573 and 1,422,664

Step by Step Solution

1. Step 1: Write the proportion equation
   696,573 : 1,422,664 = 1,422,664 : x
2. Step 2: Convert to fraction form
   696,573/1,422,664 = 1,422,664/x
3. Step 3: Cross multiply
   696,573x = 1,422,664 × 1,422,664
4. Step 4: Simplify right side
   696,573x = 2,023,972,856,896
5. Step 5: Solve for x
   x = 2,023,972,856,896/696,573
6. Step 6: Final answer
   x = 2,905,614.86