Finding the Third Proportional to 34,357 and 72,403

Step by Step Solution

1. Step 1: Write the proportion equation
   34,357 : 72,403 = 72,403 : x
2. Step 2: Convert to fraction form
   34,357/72,403 = 72,403/x
3. Step 3: Cross multiply
   34,357x = 72,403 × 72,403
4. Step 4: Simplify right side
   34,357x = 5,242,194,409
5. Step 5: Solve for x
   x = 5,242,194,409/34,357
6. Step 6: Final answer
   x = 152,580.10