Finding the Third Proportional to 42,212 and 90,073.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,212 : 90,073.50 = 90,073.50 : x
2. Step 2: Convert to fraction form
   42,212/90,073.50 = 90,073.50/x
3. Step 3: Cross multiply
   42,212x = 90,073.50 × 90,073.50
4. Step 4: Simplify right side
   42,212x = 8,113,235,402.25
5. Step 5: Solve for x
   x = 8,113,235,402.25/42,212
6. Step 6: Final answer
   x = 192,202.11