Finding the Third Proportional to 19,143,009 and 42,005,497.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,143,009 : 42,005,497.50 = 42,005,497.50 : x
2. Step 2: Convert to fraction form
   19,143,009/42,005,497.50 = 42,005,497.50/x
3. Step 3: Cross multiply
   19,143,009x = 42,005,497.50 × 42,005,497.50
4. Step 4: Simplify right side
   19,143,009x = 1,764,461,820,222,506.25
5. Step 5: Solve for x
   x = 1,764,461,820,222,506.25/19,143,009
6. Step 6: Final answer
   x = 92,172,647.48