Finding the Third Proportional to 19,700 and 42,681.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,700 : 42,681.50 = 42,681.50 : x
2. Step 2: Convert to fraction form
   19,700/42,681.50 = 42,681.50/x
3. Step 3: Cross multiply
   19,700x = 42,681.50 × 42,681.50
4. Step 4: Simplify right side
   19,700x = 1,821,710,442.25
5. Step 5: Solve for x
   x = 1,821,710,442.25/19,700
6. Step 6: Final answer
   x = 92,472.61