Finding the Third Proportional to 19,859,913 and 42,854,955

Step by Step Solution

1. Step 1: Write the proportion equation
   19,859,913 : 42,854,955 = 42,854,955 : x
2. Step 2: Convert to fraction form
   19,859,913/42,854,955 = 42,854,955/x
3. Step 3: Cross multiply
   19,859,913x = 42,854,955 × 42,854,955
4. Step 4: Simplify right side
   19,859,913x = 1,836,547,168,052,025
5. Step 5: Solve for x
   x = 1,836,547,168,052,025/19,859,913
6. Step 6: Final answer
   x = 92,475,086.27