Finding the Third Proportional to 55,903 and 85,801.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,903 : 85,801.50 = 85,801.50 : x
2. Step 2: Convert to fraction form
   55,903/85,801.50 = 85,801.50/x
3. Step 3: Cross multiply
   55,903x = 85,801.50 × 85,801.50
4. Step 4: Simplify right side
   55,903x = 7,361,897,402.25
5. Step 5: Solve for x
   x = 7,361,897,402.25/55,903
6. Step 6: Final answer
   x = 131,690.56