Finding the Third Proportional to 42,089.63 and 90,855.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,089.63 : 90,855.75 = 90,855.75 : x
2. Step 2: Convert to fraction form
   42,089.63/90,855.75 = 90,855.75/x
3. Step 3: Cross multiply
   42,089.63x = 90,855.75 × 90,855.75
4. Step 4: Simplify right side
   42,089.63x = 8,254,767,308.06
5. Step 5: Solve for x
   x = 8,254,767,308.06/42,089.63
6. Step 6: Final answer
   x = 196,123.57