Finding the Third Proportional to 42,458.25 and 89,973.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,458.25 : 89,973.75 = 89,973.75 : x
2. Step 2: Convert to fraction form
   42,458.25/89,973.75 = 89,973.75/x
3. Step 3: Cross multiply
   42,458.25x = 89,973.75 × 89,973.75
4. Step 4: Simplify right side
   42,458.25x = 8,095,275,689.06
5. Step 5: Solve for x
   x = 8,095,275,689.06/42,458.25
6. Step 6: Final answer
   x = 190,664.37