Finding the Third Proportional to 65,310 and 133,386

Step by Step Solution

1. Step 1: Write the proportion equation
   65,310 : 133,386 = 133,386 : x
2. Step 2: Convert to fraction form
   65,310/133,386 = 133,386/x
3. Step 3: Cross multiply
   65,310x = 133,386 × 133,386
4. Step 4: Simplify right side
   65,310x = 17,791,824,996
5. Step 5: Solve for x
   x = 17,791,824,996/65,310
6. Step 6: Final answer
   x = 272,421.15