Finding the Third Proportional to 19,357.88 and 42,406.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,357.88 : 42,406.88 = 42,406.88 : x
2. Step 2: Convert to fraction form
   19,357.88/42,406.88 = 42,406.88/x
3. Step 3: Cross multiply
   19,357.88x = 42,406.88 × 42,406.88
4. Step 4: Simplify right side
   19,357.88x = 1,798,343,047.27
5. Step 5: Solve for x
   x = 1,798,343,047.27/19,357.88
6. Step 6: Final answer
   x = 92,899.82