Finding the Third Proportional to 42,946.50 and 64,890.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,946.50 : 64,890.38 = 64,890.38 : x
2. Step 2: Convert to fraction form
   42,946.50/64,890.38 = 64,890.38/x
3. Step 3: Cross multiply
   42,946.50x = 64,890.38 × 64,890.38
4. Step 4: Simplify right side
   42,946.50x = 4,210,760,767.64
5. Step 5: Solve for x
   x = 4,210,760,767.64/42,946.50
6. Step 6: Final answer
   x = 98,046.66