Finding the Third Proportional to 42,189 and 63,166.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,189 : 63,166.50 = 63,166.50 : x
2. Step 2: Convert to fraction form
   42,189/63,166.50 = 63,166.50/x
3. Step 3: Cross multiply
   42,189x = 63,166.50 × 63,166.50
4. Step 4: Simplify right side
   42,189x = 3,990,006,722.25
5. Step 5: Solve for x
   x = 3,990,006,722.25/42,189
6. Step 6: Final answer
   x = 94,574.57