Finding the Third Proportional to 444,972 and 921,488

Step by Step Solution

1. Step 1: Write the proportion equation
   444,972 : 921,488 = 921,488 : x
2. Step 2: Convert to fraction form
   444,972/921,488 = 921,488/x
3. Step 3: Cross multiply
   444,972x = 921,488 × 921,488
4. Step 4: Simplify right side
   444,972x = 849,140,134,144
5. Step 5: Solve for x
   x = 849,140,134,144/444,972
6. Step 6: Final answer
   x = 1,908,300.15