Finding the Third Proportional to 19,928,084 and 42,912,536

Step by Step Solution

1. Step 1: Write the proportion equation
   19,928,084 : 42,912,536 = 42,912,536 : x
2. Step 2: Convert to fraction form
   19,928,084/42,912,536 = 42,912,536/x
3. Step 3: Cross multiply
   19,928,084x = 42,912,536 × 42,912,536
4. Step 4: Simplify right side
   19,928,084x = 1,841,485,745,951,296
5. Step 5: Solve for x
   x = 1,841,485,745,951,296/19,928,084
6. Step 6: Final answer
   x = 92,406,562.82