Finding the Third Proportional to 42,623.72 and 64,527.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,623.72 : 64,527.89 = 64,527.89 : x
2. Step 2: Convert to fraction form
   42,623.72/64,527.89 = 64,527.89/x
3. Step 3: Cross multiply
   42,623.72x = 64,527.89 × 64,527.89
4. Step 4: Simplify right side
   42,623.72x = 4,163,848,668.51
5. Step 5: Solve for x
   x = 4,163,848,668.51/42,623.72
6. Step 6: Final answer
   x = 97,688.54