Finding the Third Proportional to 19,928,090 and 42,912,548

Step by Step Solution

1. Step 1: Write the proportion equation
   19,928,090 : 42,912,548 = 42,912,548 : x
2. Step 2: Convert to fraction form
   19,928,090/42,912,548 = 42,912,548/x
3. Step 3: Cross multiply
   19,928,090x = 42,912,548 × 42,912,548
4. Step 4: Simplify right side
   19,928,090x = 1,841,486,775,852,304
5. Step 5: Solve for x
   x = 1,841,486,775,852,304/19,928,090
6. Step 6: Final answer
   x = 92,406,586.68