Finding the Third Proportional to 40,345.50 and 53,272.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,345.50 : 53,272.50 = 53,272.50 : x
2. Step 2: Convert to fraction form
   40,345.50/53,272.50 = 53,272.50/x
3. Step 3: Cross multiply
   40,345.50x = 53,272.50 × 53,272.50
4. Step 4: Simplify right side
   40,345.50x = 2,837,959,256.25
5. Step 5: Solve for x
   x = 2,837,959,256.25/40,345.50
6. Step 6: Final answer
   x = 70,341.41