Finding the Third Proportional to 911,470 and 1,963,172

Step by Step Solution

1. Step 1: Write the proportion equation
   911,470 : 1,963,172 = 1,963,172 : x
2. Step 2: Convert to fraction form
   911,470/1,963,172 = 1,963,172/x
3. Step 3: Cross multiply
   911,470x = 1,963,172 × 1,963,172
4. Step 4: Simplify right side
   911,470x = 3,854,044,301,584
5. Step 5: Solve for x
   x = 3,854,044,301,584/911,470
6. Step 6: Final answer
   x = 4,228,383.05