Finding the Third Proportional to 42,455.81 and 89,969.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,455.81 : 89,969.06 = 89,969.06 : x
2. Step 2: Convert to fraction form
   42,455.81/89,969.06 = 89,969.06/x
3. Step 3: Cross multiply
   42,455.81x = 89,969.06 × 89,969.06
4. Step 4: Simplify right side
   42,455.81x = 8,094,432,207.13
5. Step 5: Solve for x
   x = 8,094,432,207.13/42,455.81
6. Step 6: Final answer
   x = 190,655.45