Finding the Third Proportional to 19,519,221 and 42,398,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,519,221 : 42,398,605.50 = 42,398,605.50 : x
2. Step 2: Convert to fraction form
   19,519,221/42,398,605.50 = 42,398,605.50/x
3. Step 3: Cross multiply
   19,519,221x = 42,398,605.50 × 42,398,605.50
4. Step 4: Simplify right side
   19,519,221x = 1,797,641,748,344,630.25
5. Step 5: Solve for x
   x = 1,797,641,748,344,630.25/19,519,221
6. Step 6: Final answer
   x = 92,095,978.03