Finding the Third Proportional to 647,152 and 979,784

Step by Step Solution

1. Step 1: Write the proportion equation
   647,152 : 979,784 = 979,784 : x
2. Step 2: Convert to fraction form
   647,152/979,784 = 979,784/x
3. Step 3: Cross multiply
   647,152x = 979,784 × 979,784
4. Step 4: Simplify right side
   647,152x = 959,976,686,656
5. Step 5: Solve for x
   x = 959,976,686,656/647,152
6. Step 6: Final answer
   x = 1,483,386.73