Finding the Third Proportional to 357,994.50 and 772,021.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,994.50 : 772,021.50 = 772,021.50 : x
2. Step 2: Convert to fraction form
   357,994.50/772,021.50 = 772,021.50/x
3. Step 3: Cross multiply
   357,994.50x = 772,021.50 × 772,021.50
4. Step 4: Simplify right side
   357,994.50x = 596,017,196,462.25
5. Step 5: Solve for x
   x = 596,017,196,462.25/357,994.50
6. Step 6: Final answer
   x = 1,664,878.08