Finding the Third Proportional to 90,819 and 124,669.88

Step by Step Solution

1. Step 1: Write the proportion equation
   90,819 : 124,669.88 = 124,669.88 : x
2. Step 2: Convert to fraction form
   90,819/124,669.88 = 124,669.88/x
3. Step 3: Cross multiply
   90,819x = 124,669.88 × 124,669.88
4. Step 4: Simplify right side
   90,819x = 15,542,577,732.52
5. Step 5: Solve for x
   x = 15,542,577,732.52/90,819
6. Step 6: Final answer
   x = 171,137.95