Finding the Third Proportional to 27,969.68 and 42,543.98

Step by Step Solution

1. Step 1: Write the proportion equation
   27,969.68 : 42,543.98 = 42,543.98 : x
2. Step 2: Convert to fraction form
   27,969.68/42,543.98 = 42,543.98/x
3. Step 3: Cross multiply
   27,969.68x = 42,543.98 × 42,543.98
4. Step 4: Simplify right side
   27,969.68x = 1,809,990,606.50
5. Step 5: Solve for x
   x = 1,809,990,606.50/27,969.68
6. Step 6: Final answer
   x = 64,712.60