Finding the Third Proportional to 191,632.50 and 403,128

Step by Step Solution

1. Step 1: Write the proportion equation
   191,632.50 : 403,128 = 403,128 : x
2. Step 2: Convert to fraction form
   191,632.50/403,128 = 403,128/x
3. Step 3: Cross multiply
   191,632.50x = 403,128 × 403,128
4. Step 4: Simplify right side
   191,632.50x = 162,512,184,384
5. Step 5: Solve for x
   x = 162,512,184,384/191,632.50
6. Step 6: Final answer
   x = 848,040.83