Finding the Third Proportional to 357,930 and 771,907.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,930 : 771,907.50 = 771,907.50 : x
2. Step 2: Convert to fraction form
   357,930/771,907.50 = 771,907.50/x
3. Step 3: Cross multiply
   357,930x = 771,907.50 × 771,907.50
4. Step 4: Simplify right side
   357,930x = 595,841,188,556.25
5. Step 5: Solve for x
   x = 595,841,188,556.25/357,930
6. Step 6: Final answer
   x = 1,664,686.36