Finding the Third Proportional to 42,251.63 and 89,889.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,251.63 : 89,889.75 = 89,889.75 : x
2. Step 2: Convert to fraction form
   42,251.63/89,889.75 = 89,889.75/x
3. Step 3: Cross multiply
   42,251.63x = 89,889.75 × 89,889.75
4. Step 4: Simplify right side
   42,251.63x = 8,080,167,155.06
5. Step 5: Solve for x
   x = 8,080,167,155.06/42,251.63
6. Step 6: Final answer
   x = 191,239.20