Finding the Third Proportional to 27,820.13 and 65,644.59

Step by Step Solution

1. Step 1: Write the proportion equation
   27,820.13 : 65,644.59 = 65,644.59 : x
2. Step 2: Convert to fraction form
   27,820.13/65,644.59 = 65,644.59/x
3. Step 3: Cross multiply
   27,820.13x = 65,644.59 × 65,644.59
4. Step 4: Simplify right side
   27,820.13x = 4,309,212,688.60
5. Step 5: Solve for x
   x = 4,309,212,688.60/27,820.13
6. Step 6: Final answer
   x = 154,895.52