Finding the Third Proportional to 54,681.56 and 78,194.81

Step by Step Solution

1. Step 1: Write the proportion equation
   54,681.56 : 78,194.81 = 78,194.81 : x
2. Step 2: Convert to fraction form
   54,681.56/78,194.81 = 78,194.81/x
3. Step 3: Cross multiply
   54,681.56x = 78,194.81 × 78,194.81
4. Step 4: Simplify right side
   54,681.56x = 6,114,428,701.91
5. Step 5: Solve for x
   x = 6,114,428,701.91/54,681.56
6. Step 6: Final answer
   x = 111,818.84