Finding the Third Proportional to 55,424 and 81,192.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,424 : 81,192.50 = 81,192.50 : x
2. Step 2: Convert to fraction form
   55,424/81,192.50 = 81,192.50/x
3. Step 3: Cross multiply
   55,424x = 81,192.50 × 81,192.50
4. Step 4: Simplify right side
   55,424x = 6,592,222,056.25
5. Step 5: Solve for x
   x = 6,592,222,056.25/55,424
6. Step 6: Final answer
   x = 118,941.65