Finding the Third Proportional to 30,888.84 and 67,442.63

Step by Step Solution

1. Step 1: Write the proportion equation
   30,888.84 : 67,442.63 = 67,442.63 : x
2. Step 2: Convert to fraction form
   30,888.84/67,442.63 = 67,442.63/x
3. Step 3: Cross multiply
   30,888.84x = 67,442.63 × 67,442.63
4. Step 4: Simplify right side
   30,888.84x = 4,548,507,666.89
5. Step 5: Solve for x
   x = 4,548,507,666.89/30,888.84
6. Step 6: Final answer
   x = 147,254.06