Finding the Third Proportional to 1,615,128 and 3,548,664

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615,128 : 3,548,664 = 3,548,664 : x
2. Step 2: Convert to fraction form
   1,615,128/3,548,664 = 3,548,664/x
3. Step 3: Cross multiply
   1,615,128x = 3,548,664 × 3,548,664
4. Step 4: Simplify right side
   1,615,128x = 12,593,016,184,896
5. Step 5: Solve for x
   x = 12,593,016,184,896/1,615,128
6. Step 6: Final answer
   x = 7,796,915.28