Finding the Third Proportional to 89,899.50 and 193,810.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,899.50 : 193,810.50 = 193,810.50 : x
2. Step 2: Convert to fraction form
   89,899.50/193,810.50 = 193,810.50/x
3. Step 3: Cross multiply
   89,899.50x = 193,810.50 × 193,810.50
4. Step 4: Simplify right side
   89,899.50x = 37,562,509,910.25
5. Step 5: Solve for x
   x = 37,562,509,910.25/89,899.50
6. Step 6: Final answer
   x = 417,827.80