Finding the Third Proportional to 307,251 and 447,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   307,251 : 447,367.50 = 447,367.50 : x
2. Step 2: Convert to fraction form
   307,251/447,367.50 = 447,367.50/x
3. Step 3: Cross multiply
   307,251x = 447,367.50 × 447,367.50
4. Step 4: Simplify right side
   307,251x = 200,137,680,056.25
5. Step 5: Solve for x
   x = 200,137,680,056.25/307,251
6. Step 6: Final answer
   x = 651,381.70