Finding the Third Proportional to 139,901 and 302,139

Step by Step Solution

1. Step 1: Write the proportion equation
   139,901 : 302,139 = 302,139 : x
2. Step 2: Convert to fraction form
   139,901/302,139 = 302,139/x
3. Step 3: Cross multiply
   139,901x = 302,139 × 302,139
4. Step 4: Simplify right side
   139,901x = 91,287,975,321
5. Step 5: Solve for x
   x = 91,287,975,321/139,901
6. Step 6: Final answer
   x = 652,518.39