Finding the Third Proportional to 700,242 and 990,907.50

Step by Step Solution

1. Step 1: Write the proportion equation
   700,242 : 990,907.50 = 990,907.50 : x
2. Step 2: Convert to fraction form
   700,242/990,907.50 = 990,907.50/x
3. Step 3: Cross multiply
   700,242x = 990,907.50 × 990,907.50
4. Step 4: Simplify right side
   700,242x = 981,897,673,556.25
5. Step 5: Solve for x
   x = 981,897,673,556.25/700,242
6. Step 6: Final answer
   x = 1,402,226.19