Finding the Third Proportional to 90,324 and 137,842.88

Step by Step Solution

1. Step 1: Write the proportion equation
   90,324 : 137,842.88 = 137,842.88 : x
2. Step 2: Convert to fraction form
   90,324/137,842.88 = 137,842.88/x
3. Step 3: Cross multiply
   90,324x = 137,842.88 × 137,842.88
4. Step 4: Simplify right side
   90,324x = 19,000,658,188.27
5. Step 5: Solve for x
   x = 19,000,658,188.27/90,324
6. Step 6: Final answer
   x = 210,361.12