Finding the Third Proportional to 620,772 and 949,207.50

Step by Step Solution

1. Step 1: Write the proportion equation
   620,772 : 949,207.50 = 949,207.50 : x
2. Step 2: Convert to fraction form
   620,772/949,207.50 = 949,207.50/x
3. Step 3: Cross multiply
   620,772x = 949,207.50 × 949,207.50
4. Step 4: Simplify right side
   620,772x = 900,994,878,056.25
5. Step 5: Solve for x
   x = 900,994,878,056.25/620,772
6. Step 6: Final answer
   x = 1,451,410.31