Finding the Third Proportional to 19,943,856 and 42,867,078

Step by Step Solution

1. Step 1: Write the proportion equation
   19,943,856 : 42,867,078 = 42,867,078 : x
2. Step 2: Convert to fraction form
   19,943,856/42,867,078 = 42,867,078/x
3. Step 3: Cross multiply
   19,943,856x = 42,867,078 × 42,867,078
4. Step 4: Simplify right side
   19,943,856x = 1,837,586,376,258,084
5. Step 5: Solve for x
   x = 1,837,586,376,258,084/19,943,856
6. Step 6: Final answer
   x = 92,137,968.52