Finding the Third Proportional to 37,240 and 72,610

Step by Step Solution

1. Step 1: Write the proportion equation
   37,240 : 72,610 = 72,610 : x
2. Step 2: Convert to fraction form
   37,240/72,610 = 72,610/x
3. Step 3: Cross multiply
   37,240x = 72,610 × 72,610
4. Step 4: Simplify right side
   37,240x = 5,272,212,100
5. Step 5: Solve for x
   x = 5,272,212,100/37,240
6. Step 6: Final answer
   x = 141,573.90