Finding the Third Proportional to 42,205.25 and 90,059.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,205.25 : 90,059.63 = 90,059.63 : x
2. Step 2: Convert to fraction form
   42,205.25/90,059.63 = 90,059.63/x
3. Step 3: Cross multiply
   42,205.25x = 90,059.63 × 90,059.63
4. Step 4: Simplify right side
   42,205.25x = 8,110,736,055.14
5. Step 5: Solve for x
   x = 8,110,736,055.14/42,205.25
6. Step 6: Final answer
   x = 192,173.63