Finding the Third Proportional to 19,709,361 and 42,142,534

Step by Step Solution

1. Step 1: Write the proportion equation
   19,709,361 : 42,142,534 = 42,142,534 : x
2. Step 2: Convert to fraction form
   19,709,361/42,142,534 = 42,142,534/x
3. Step 3: Cross multiply
   19,709,361x = 42,142,534 × 42,142,534
4. Step 4: Simplify right side
   19,709,361x = 1,775,993,171,941,156
5. Step 5: Solve for x
   x = 1,775,993,171,941,156/19,709,361
6. Step 6: Final answer
   x = 90,109,119.82