Finding the Third Proportional to 89,969.63 and 191,009.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,969.63 : 191,009.25 = 191,009.25 : x
2. Step 2: Convert to fraction form
   89,969.63/191,009.25 = 191,009.25/x
3. Step 3: Cross multiply
   89,969.63x = 191,009.25 × 191,009.25
4. Step 4: Simplify right side
   89,969.63x = 36,484,533,585.56
5. Step 5: Solve for x
   x = 36,484,533,585.56/89,969.63
6. Step 6: Final answer
   x = 405,520.57