Finding the Third Proportional to 19,557,886.50 and 42,481,512

Step by Step Solution

1. Step 1: Write the proportion equation
   19,557,886.50 : 42,481,512 = 42,481,512 : x
2. Step 2: Convert to fraction form
   19,557,886.50/42,481,512 = 42,481,512/x
3. Step 3: Cross multiply
   19,557,886.50x = 42,481,512 × 42,481,512
4. Step 4: Simplify right side
   19,557,886.50x = 1,804,678,861,806,144
5. Step 5: Solve for x
   x = 1,804,678,861,806,144/19,557,886.50
6. Step 6: Final answer
   x = 92,273,715.86