Finding the Third Proportional to 19,928,028 and 42,912,408

Step by Step Solution

1. Step 1: Write the proportion equation
   19,928,028 : 42,912,408 = 42,912,408 : x
2. Step 2: Convert to fraction form
   19,928,028/42,912,408 = 42,912,408/x
3. Step 3: Cross multiply
   19,928,028x = 42,912,408 × 42,912,408
4. Step 4: Simplify right side
   19,928,028x = 1,841,474,760,358,464
5. Step 5: Solve for x
   x = 1,841,474,760,358,464/19,928,028
6. Step 6: Final answer
   x = 92,406,271.23