Finding the Third Proportional to 42,947 and 64,221.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,947 : 64,221.50 = 64,221.50 : x
2. Step 2: Convert to fraction form
   42,947/64,221.50 = 64,221.50/x
3. Step 3: Cross multiply
   42,947x = 64,221.50 × 64,221.50
4. Step 4: Simplify right side
   42,947x = 4,124,401,062.25
5. Step 5: Solve for x
   x = 4,124,401,062.25/42,947
6. Step 6: Final answer
   x = 96,034.67