Finding the Third Proportional to 55,476 and 90,129.38

Step by Step Solution

1. Step 1: Write the proportion equation
   55,476 : 90,129.38 = 90,129.38 : x
2. Step 2: Convert to fraction form
   55,476/90,129.38 = 90,129.38/x
3. Step 3: Cross multiply
   55,476x = 90,129.38 × 90,129.38
4. Step 4: Simplify right side
   55,476x = 8,123,304,237.89
5. Step 5: Solve for x
   x = 8,123,304,237.89/55,476
6. Step 6: Final answer
   x = 146,429.16