Finding the Third Proportional to 54,848.81 and 81,914.63

Step by Step Solution

1. Step 1: Write the proportion equation
   54,848.81 : 81,914.63 = 81,914.63 : x
2. Step 2: Convert to fraction form
   54,848.81/81,914.63 = 81,914.63/x
3. Step 3: Cross multiply
   54,848.81x = 81,914.63 × 81,914.63
4. Step 4: Simplify right side
   54,848.81x = 6,710,005,788.89
5. Step 5: Solve for x
   x = 6,710,005,788.89/54,848.81
6. Step 6: Final answer
   x = 122,336.39