Finding the Third Proportional to 77,582 and 158,428

Step by Step Solution

1. Step 1: Write the proportion equation
   77,582 : 158,428 = 158,428 : x
2. Step 2: Convert to fraction form
   77,582/158,428 = 158,428/x
3. Step 3: Cross multiply
   77,582x = 158,428 × 158,428
4. Step 4: Simplify right side
   77,582x = 25,099,431,184
5. Step 5: Solve for x
   x = 25,099,431,184/77,582
6. Step 6: Final answer
   x = 323,521.32