Finding the Third Proportional to 42,037.81 and 82,907.91

Step by Step Solution

1. Step 1: Write the proportion equation
   42,037.81 : 82,907.91 = 82,907.91 : x
2. Step 2: Convert to fraction form
   42,037.81/82,907.91 = 82,907.91/x
3. Step 3: Cross multiply
   42,037.81x = 82,907.91 × 82,907.91
4. Step 4: Simplify right side
   42,037.81x = 6,873,721,525.99
5. Step 5: Solve for x
   x = 6,873,721,525.99/42,037.81
6. Step 6: Final answer
   x = 163,512.82