Finding the Third Proportional to 188,436 and 264,090

Step by Step Solution

1. Step 1: Write the proportion equation
   188,436 : 264,090 = 264,090 : x
2. Step 2: Convert to fraction form
   188,436/264,090 = 264,090/x
3. Step 3: Cross multiply
   188,436x = 264,090 × 264,090
4. Step 4: Simplify right side
   188,436x = 69,743,528,100
5. Step 5: Solve for x
   x = 69,743,528,100/188,436
6. Step 6: Final answer
   x = 370,117.85