Finding the Third Proportional to 314,079 and 687,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   314,079 : 687,970.50 = 687,970.50 : x
2. Step 2: Convert to fraction form
   314,079/687,970.50 = 687,970.50/x
3. Step 3: Cross multiply
   314,079x = 687,970.50 × 687,970.50
4. Step 4: Simplify right side
   314,079x = 473,303,408,870.25
5. Step 5: Solve for x
   x = 473,303,408,870.25/314,079
6. Step 6: Final answer
   x = 1,506,956.56