Finding the Third Proportional to 48,621 and 69,527.50

Step by Step Solution

1. Step 1: Write the proportion equation
   48,621 : 69,527.50 = 69,527.50 : x
2. Step 2: Convert to fraction form
   48,621/69,527.50 = 69,527.50/x
3. Step 3: Cross multiply
   48,621x = 69,527.50 × 69,527.50
4. Step 4: Simplify right side
   48,621x = 4,834,073,256.25
5. Step 5: Solve for x
   x = 4,834,073,256.25/48,621
6. Step 6: Final answer
   x = 99,423.57