Finding the Third Proportional to 666,346.50 and 949,677

Step by Step Solution

1. Step 1: Write the proportion equation
   666,346.50 : 949,677 = 949,677 : x
2. Step 2: Convert to fraction form
   666,346.50/949,677 = 949,677/x
3. Step 3: Cross multiply
   666,346.50x = 949,677 × 949,677
4. Step 4: Simplify right side
   666,346.50x = 901,886,404,329
5. Step 5: Solve for x
   x = 901,886,404,329/666,346.50
6. Step 6: Final answer
   x = 1,353,479.62