Finding the Third Proportional to 30,777.63 and 66,152.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,777.63 : 66,152.56 = 66,152.56 : x
2. Step 2: Convert to fraction form
   30,777.63/66,152.56 = 66,152.56/x
3. Step 3: Cross multiply
   30,777.63x = 66,152.56 × 66,152.56
4. Step 4: Simplify right side
   30,777.63x = 4,376,161,525.32
5. Step 5: Solve for x
   x = 4,376,161,525.32/30,777.63
6. Step 6: Final answer
   x = 142,186.46