Finding the Third Proportional to 428,368 and 904,960

Step by Step Solution

1. Step 1: Write the proportion equation
   428,368 : 904,960 = 904,960 : x
2. Step 2: Convert to fraction form
   428,368/904,960 = 904,960/x
3. Step 3: Cross multiply
   428,368x = 904,960 × 904,960
4. Step 4: Simplify right side
   428,368x = 818,952,601,600
5. Step 5: Solve for x
   x = 818,952,601,600/428,368
6. Step 6: Final answer
   x = 1,911,796.87