Finding the Third Proportional to 42,245.30 and 85,656.23

Step by Step Solution

1. Step 1: Write the proportion equation
   42,245.30 : 85,656.23 = 85,656.23 : x
2. Step 2: Convert to fraction form
   42,245.30/85,656.23 = 85,656.23/x
3. Step 3: Cross multiply
   42,245.30x = 85,656.23 × 85,656.23
4. Step 4: Simplify right side
   42,245.30x = 7,336,990,487.30
5. Step 5: Solve for x
   x = 7,336,990,487.30/42,245.30
6. Step 6: Final answer
   x = 173,675.91