Finding the Third Proportional to 42,210.81 and 89,265.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,210.81 : 89,265.48 = 89,265.48 : x
2. Step 2: Convert to fraction form
   42,210.81/89,265.48 = 89,265.48/x
3. Step 3: Cross multiply
   42,210.81x = 89,265.48 × 89,265.48
4. Step 4: Simplify right side
   42,210.81x = 7,968,326,003.32
5. Step 5: Solve for x
   x = 7,968,326,003.32/42,210.81
6. Step 6: Final answer
   x = 188,774.54