Finding the Third Proportional to 19,670.34 and 42,466.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,670.34 : 42,466.78 = 42,466.78 : x
2. Step 2: Convert to fraction form
   19,670.34/42,466.78 = 42,466.78/x
3. Step 3: Cross multiply
   19,670.34x = 42,466.78 × 42,466.78
4. Step 4: Simplify right side
   19,670.34x = 1,803,427,509.74
5. Step 5: Solve for x
   x = 1,803,427,509.74/19,670.34
6. Step 6: Final answer
   x = 91,682.56