Finding the Third Proportional to 55,905.19 and 85,498.03

Step by Step Solution

1. Step 1: Write the proportion equation
   55,905.19 : 85,498.03 = 85,498.03 : x
2. Step 2: Convert to fraction form
   55,905.19/85,498.03 = 85,498.03/x
3. Step 3: Cross multiply
   55,905.19x = 85,498.03 × 85,498.03
4. Step 4: Simplify right side
   55,905.19x = 7,309,913,347.63
5. Step 5: Solve for x
   x = 7,309,913,347.63/55,905.19
6. Step 6: Final answer
   x = 130,755.55