Finding the Third Proportional to 647,538 and 971,308

Step by Step Solution

1. Step 1: Write the proportion equation
   647,538 : 971,308 = 971,308 : x
2. Step 2: Convert to fraction form
   647,538/971,308 = 971,308/x
3. Step 3: Cross multiply
   647,538x = 971,308 × 971,308
4. Step 4: Simplify right side
   647,538x = 943,439,230,864
5. Step 5: Solve for x
   x = 943,439,230,864/647,538
6. Step 6: Final answer
   x = 1,456,963.50