Finding the Third Proportional to 188,470 and 264,139

Step by Step Solution

1. Step 1: Write the proportion equation
   188,470 : 264,139 = 264,139 : x
2. Step 2: Convert to fraction form
   188,470/264,139 = 264,139/x
3. Step 3: Cross multiply
   188,470x = 264,139 × 264,139
4. Step 4: Simplify right side
   188,470x = 69,769,411,321
5. Step 5: Solve for x
   x = 69,769,411,321/188,470
6. Step 6: Final answer
   x = 370,188.42