Finding the Third Proportional to 55,458 and 90,106.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,458 : 90,106.50 = 90,106.50 : x
2. Step 2: Convert to fraction form
   55,458/90,106.50 = 90,106.50/x
3. Step 3: Cross multiply
   55,458x = 90,106.50 × 90,106.50
4. Step 4: Simplify right side
   55,458x = 8,119,181,342.25
5. Step 5: Solve for x
   x = 8,119,181,342.25/55,458
6. Step 6: Final answer
   x = 146,402.35