Finding the Third Proportional to 77,237 and 123,349

Step by Step Solution

1. Step 1: Write the proportion equation
   77,237 : 123,349 = 123,349 : x
2. Step 2: Convert to fraction form
   77,237/123,349 = 123,349/x
3. Step 3: Cross multiply
   77,237x = 123,349 × 123,349
4. Step 4: Simplify right side
   77,237x = 15,214,975,801
5. Step 5: Solve for x
   x = 15,214,975,801/77,237
6. Step 6: Final answer
   x = 196,990.77