Finding the Third Proportional to 19,358,557.88 and 42,131,022.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,358,557.88 : 42,131,022.75 = 42,131,022.75 : x
2. Step 2: Convert to fraction form
   19,358,557.88/42,131,022.75 = 42,131,022.75/x
3. Step 3: Cross multiply
   19,358,557.88x = 42,131,022.75 × 42,131,022.75
4. Step 4: Simplify right side
   19,358,557.88x = 1,775,023,077,961,017.50
5. Step 5: Solve for x
   x = 1,775,023,077,961,017.50/19,358,557.88
6. Step 6: Final answer
   x = 91,691,906.46