Finding the Third Proportional to 42,738.75 and 66,347.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,738.75 : 66,347.63 = 66,347.63 : x
2. Step 2: Convert to fraction form
   42,738.75/66,347.63 = 66,347.63/x
3. Step 3: Cross multiply
   42,738.75x = 66,347.63 × 66,347.63
4. Step 4: Simplify right side
   42,738.75x = 4,402,007,343.14
5. Step 5: Solve for x
   x = 4,402,007,343.14/42,738.75
6. Step 6: Final answer
   x = 102,998.04