Finding the Third Proportional to 55,472.34 and 90,126.42

Step by Step Solution

1. Step 1: Write the proportion equation
   55,472.34 : 90,126.42 = 90,126.42 : x
2. Step 2: Convert to fraction form
   55,472.34/90,126.42 = 90,126.42/x
3. Step 3: Cross multiply
   55,472.34x = 90,126.42 × 90,126.42
4. Step 4: Simplify right side
   55,472.34x = 8,122,771,919.99
5. Step 5: Solve for x
   x = 8,122,771,919.99/55,472.34
6. Step 6: Final answer
   x = 146,429.22