Finding the Third Proportional to 19,770,921 and 42,575,454

Step by Step Solution

1. Step 1: Write the proportion equation
   19,770,921 : 42,575,454 = 42,575,454 : x
2. Step 2: Convert to fraction form
   19,770,921/42,575,454 = 42,575,454/x
3. Step 3: Cross multiply
   19,770,921x = 42,575,454 × 42,575,454
4. Step 4: Simplify right side
   19,770,921x = 1,812,669,283,306,116
5. Step 5: Solve for x
   x = 1,812,669,283,306,116/19,770,921
6. Step 6: Final answer
   x = 91,683,603.58