Finding the Third Proportional to 919,440 and 1,427,272

Step by Step Solution

1. Step 1: Write the proportion equation
   919,440 : 1,427,272 = 1,427,272 : x
2. Step 2: Convert to fraction form
   919,440/1,427,272 = 1,427,272/x
3. Step 3: Cross multiply
   919,440x = 1,427,272 × 1,427,272
4. Step 4: Simplify right side
   919,440x = 2,037,105,361,984
5. Step 5: Solve for x
   x = 2,037,105,361,984/919,440
6. Step 6: Final answer
   x = 2,215,593.58