Finding the Third Proportional to 55,504.13 and 84,637.69

Step by Step Solution

1. Step 1: Write the proportion equation
   55,504.13 : 84,637.69 = 84,637.69 : x
2. Step 2: Convert to fraction form
   55,504.13/84,637.69 = 84,637.69/x
3. Step 3: Cross multiply
   55,504.13x = 84,637.69 × 84,637.69
4. Step 4: Simplify right side
   55,504.13x = 7,163,538,145.35
5. Step 5: Solve for x
   x = 7,163,538,145.35/55,504.13
6. Step 6: Final answer
   x = 129,063.17