Finding the Third Proportional to 137,148 and 207,180

Step by Step Solution

1. Step 1: Write the proportion equation
   137,148 : 207,180 = 207,180 : x
2. Step 2: Convert to fraction form
   137,148/207,180 = 207,180/x
3. Step 3: Cross multiply
   137,148x = 207,180 × 207,180
4. Step 4: Simplify right side
   137,148x = 42,923,552,400
5. Step 5: Solve for x
   x = 42,923,552,400/137,148
6. Step 6: Final answer
   x = 312,972.50