Finding the Third Proportional to 713,582 and 978,528

Step by Step Solution

1. Step 1: Write the proportion equation
   713,582 : 978,528 = 978,528 : x
2. Step 2: Convert to fraction form
   713,582/978,528 = 978,528/x
3. Step 3: Cross multiply
   713,582x = 978,528 × 978,528
4. Step 4: Simplify right side
   713,582x = 957,517,046,784
5. Step 5: Solve for x
   x = 957,517,046,784/713,582
6. Step 6: Final answer
   x = 1,341,845.85