Finding the Third Proportional to 538,272 and 1,168,128

Step by Step Solution

1. Step 1: Write the proportion equation
   538,272 : 1,168,128 = 1,168,128 : x
2. Step 2: Convert to fraction form
   538,272/1,168,128 = 1,168,128/x
3. Step 3: Cross multiply
   538,272x = 1,168,128 × 1,168,128
4. Step 4: Simplify right side
   538,272x = 1,364,523,024,384
5. Step 5: Solve for x
   x = 1,364,523,024,384/538,272
6. Step 6: Final answer
   x = 2,535,006.51