Finding the Third Proportional to 50,503.50 and 70,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,503.50 : 70,807.50 = 70,807.50 : x
2. Step 2: Convert to fraction form
   50,503.50/70,807.50 = 70,807.50/x
3. Step 3: Cross multiply
   50,503.50x = 70,807.50 × 70,807.50
4. Step 4: Simplify right side
   50,503.50x = 5,013,702,056.25
5. Step 5: Solve for x
   x = 5,013,702,056.25/50,503.50
6. Step 6: Final answer
   x = 99,274.35