Finding the Third Proportional to 17,438.63 and 37,990.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,438.63 : 37,990.69 = 37,990.69 : x
2. Step 2: Convert to fraction form
   17,438.63/37,990.69 = 37,990.69/x
3. Step 3: Cross multiply
   17,438.63x = 37,990.69 × 37,990.69
4. Step 4: Simplify right side
   17,438.63x = 1,443,292,336.72
5. Step 5: Solve for x
   x = 1,443,292,336.72/17,438.63
6. Step 6: Final answer
   x = 82,764.11