Finding the Third Proportional to 424,754 and 912,470

Step by Step Solution

1. Step 1: Write the proportion equation
   424,754 : 912,470 = 912,470 : x
2. Step 2: Convert to fraction form
   424,754/912,470 = 912,470/x
3. Step 3: Cross multiply
   424,754x = 912,470 × 912,470
4. Step 4: Simplify right side
   424,754x = 832,601,500,900
5. Step 5: Solve for x
   x = 832,601,500,900/424,754
6. Step 6: Final answer
   x = 1,960,196.96