Finding the Third Proportional to 42,930 and 93,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,930 : 93,991.50 = 93,991.50 : x
2. Step 2: Convert to fraction form
   42,930/93,991.50 = 93,991.50/x
3. Step 3: Cross multiply
   42,930x = 93,991.50 × 93,991.50
4. Step 4: Simplify right side
   42,930x = 8,834,402,072.25
5. Step 5: Solve for x
   x = 8,834,402,072.25/42,930
6. Step 6: Final answer
   x = 205,786.21