Finding the Third Proportional to 72,459 and 157,789

Step by Step Solution

1. Step 1: Write the proportion equation
   72,459 : 157,789 = 157,789 : x
2. Step 2: Convert to fraction form
   72,459/157,789 = 157,789/x
3. Step 3: Cross multiply
   72,459x = 157,789 × 157,789
4. Step 4: Simplify right side
   72,459x = 24,897,368,521
5. Step 5: Solve for x
   x = 24,897,368,521/72,459
6. Step 6: Final answer
   x = 343,606.29