Finding the Third Proportional to 55,483.31 and 84,607.88

Step by Step Solution

1. Step 1: Write the proportion equation
   55,483.31 : 84,607.88 = 84,607.88 : x
2. Step 2: Convert to fraction form
   55,483.31/84,607.88 = 84,607.88/x
3. Step 3: Cross multiply
   55,483.31x = 84,607.88 × 84,607.88
4. Step 4: Simplify right side
   55,483.31x = 7,158,492,512.02
5. Step 5: Solve for x
   x = 7,158,492,512.02/55,483.31
6. Step 6: Final answer
   x = 129,020.64