Finding the Third Proportional to 42,804 and 66,536.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,804 : 66,536.50 = 66,536.50 : x
2. Step 2: Convert to fraction form
   42,804/66,536.50 = 66,536.50/x
3. Step 3: Cross multiply
   42,804x = 66,536.50 × 66,536.50
4. Step 4: Simplify right side
   42,804x = 4,427,105,832.25
5. Step 5: Solve for x
   x = 4,427,105,832.25/42,804
6. Step 6: Final answer
   x = 103,427.39