Finding the Third Proportional to 19,778,574 and 42,754,812

Step by Step Solution

1. Step 1: Write the proportion equation
   19,778,574 : 42,754,812 = 42,754,812 : x
2. Step 2: Convert to fraction form
   19,778,574/42,754,812 = 42,754,812/x
3. Step 3: Cross multiply
   19,778,574x = 42,754,812 × 42,754,812
4. Step 4: Simplify right side
   19,778,574x = 1,827,973,949,155,344
5. Step 5: Solve for x
   x = 1,827,973,949,155,344/19,778,574
6. Step 6: Final answer
   x = 92,421,928.35