Finding the Third Proportional to 181,912 and 371,222

Step by Step Solution

1. Step 1: Write the proportion equation
   181,912 : 371,222 = 371,222 : x
2. Step 2: Convert to fraction form
   181,912/371,222 = 371,222/x
3. Step 3: Cross multiply
   181,912x = 371,222 × 371,222
4. Step 4: Simplify right side
   181,912x = 137,805,773,284
5. Step 5: Solve for x
   x = 137,805,773,284/181,912
6. Step 6: Final answer
   x = 757,540.86