Finding the Third Proportional to 148,272 and 317,996.63

Step by Step Solution

1. Step 1: Write the proportion equation
   148,272 : 317,996.63 = 317,996.63 : x
2. Step 2: Convert to fraction form
   148,272/317,996.63 = 317,996.63/x
3. Step 3: Cross multiply
   148,272x = 317,996.63 × 317,996.63
4. Step 4: Simplify right side
   148,272x = 101,121,853,511.39
5. Step 5: Solve for x
   x = 101,121,853,511.39/148,272
6. Step 6: Final answer
   x = 682,002.36