Finding the Third Proportional to 42,090 and 88,924.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,090 : 88,924.50 = 88,924.50 : x
2. Step 2: Convert to fraction form
   42,090/88,924.50 = 88,924.50/x
3. Step 3: Cross multiply
   42,090x = 88,924.50 × 88,924.50
4. Step 4: Simplify right side
   42,090x = 7,907,566,700.25
5. Step 5: Solve for x
   x = 7,907,566,700.25/42,090
6. Step 6: Final answer
   x = 187,872.81