Finding the Third Proportional to 19,951,424 and 42,886,468

Step by Step Solution

1. Step 1: Write the proportion equation
   19,951,424 : 42,886,468 = 42,886,468 : x
2. Step 2: Convert to fraction form
   19,951,424/42,886,468 = 42,886,468/x
3. Step 3: Cross multiply
   19,951,424x = 42,886,468 × 42,886,468
4. Step 4: Simplify right side
   19,951,424x = 1,839,249,137,515,024
5. Step 5: Solve for x
   x = 1,839,249,137,515,024/19,951,424
6. Step 6: Final answer
   x = 92,186,359.10