Finding the Third Proportional to 19,384,336 and 42,289,216

Step by Step Solution

1. Step 1: Write the proportion equation
   19,384,336 : 42,289,216 = 42,289,216 : x
2. Step 2: Convert to fraction form
   19,384,336/42,289,216 = 42,289,216/x
3. Step 3: Cross multiply
   19,384,336x = 42,289,216 × 42,289,216
4. Step 4: Simplify right side
   19,384,336x = 1,788,377,789,894,656
5. Step 5: Solve for x
   x = 1,788,377,789,894,656/19,384,336
6. Step 6: Final answer
   x = 92,258,914.10