Finding the Third Proportional to 126,820.69 and 196,642.69

Step by Step Solution

1. Step 1: Write the proportion equation
   126,820.69 : 196,642.69 = 196,642.69 : x
2. Step 2: Convert to fraction form
   126,820.69/196,642.69 = 196,642.69/x
3. Step 3: Cross multiply
   126,820.69x = 196,642.69 × 196,642.69
4. Step 4: Simplify right side
   126,820.69x = 38,668,346,547.22
5. Step 5: Solve for x
   x = 38,668,346,547.22/126,820.69
6. Step 6: Final answer
   x = 304,905.67