Finding the Third Proportional to 64,374.75 and 89,089.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,374.75 : 89,089.88 = 89,089.88 : x
2. Step 2: Convert to fraction form
   64,374.75/89,089.88 = 89,089.88/x
3. Step 3: Cross multiply
   64,374.75x = 89,089.88 × 89,089.88
4. Step 4: Simplify right side
   64,374.75x = 7,937,005,827.52
5. Step 5: Solve for x
   x = 7,937,005,827.52/64,374.75
6. Step 6: Final answer
   x = 123,293.77