Finding the Third Proportional to 19,791 and 42,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,791 : 42,997.50 = 42,997.50 : x
2. Step 2: Convert to fraction form
   19,791/42,997.50 = 42,997.50/x
3. Step 3: Cross multiply
   19,791x = 42,997.50 × 42,997.50
4. Step 4: Simplify right side
   19,791x = 1,848,785,006.25
5. Step 5: Solve for x
   x = 1,848,785,006.25/19,791
6. Step 6: Final answer
   x = 93,415.44