Finding the Third Proportional to 63,111.66 and 138,069.56

Step by Step Solution

1. Step 1: Write the proportion equation
   63,111.66 : 138,069.56 = 138,069.56 : x
2. Step 2: Convert to fraction form
   63,111.66/138,069.56 = 138,069.56/x
3. Step 3: Cross multiply
   63,111.66x = 138,069.56 × 138,069.56
4. Step 4: Simplify right side
   63,111.66x = 19,063,204,088.94
5. Step 5: Solve for x
   x = 19,063,204,088.94/63,111.66
6. Step 6: Final answer
   x = 302,055.20