Finding the Third Proportional to 8,656,213.50 and 13,456,840.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,656,213.50 : 13,456,840.50 = 13,456,840.50 : x
2. Step 2: Convert to fraction form
   8,656,213.50/13,456,840.50 = 13,456,840.50/x
3. Step 3: Cross multiply
   8,656,213.50x = 13,456,840.50 × 13,456,840.50
4. Step 4: Simplify right side
   8,656,213.50x = 181,086,556,242,440.25
5. Step 5: Solve for x
   x = 181,086,556,242,440.25/8,656,213.50
6. Step 6: Final answer
   x = 20,919,834.78