Finding the Third Proportional to 81,040.50 and 188,402.63

Step by Step Solution

1. Step 1: Write the proportion equation
   81,040.50 : 188,402.63 = 188,402.63 : x
2. Step 2: Convert to fraction form
   81,040.50/188,402.63 = 188,402.63/x
3. Step 3: Cross multiply
   81,040.50x = 188,402.63 × 188,402.63
4. Step 4: Simplify right side
   81,040.50x = 35,495,549,106.89
5. Step 5: Solve for x
   x = 35,495,549,106.89/81,040.50
6. Step 6: Final answer
   x = 437,997.66