Finding the Third Proportional to 702,930 and 1,089,388

Step by Step Solution

1. Step 1: Write the proportion equation
   702,930 : 1,089,388 = 1,089,388 : x
2. Step 2: Convert to fraction form
   702,930/1,089,388 = 1,089,388/x
3. Step 3: Cross multiply
   702,930x = 1,089,388 × 1,089,388
4. Step 4: Simplify right side
   702,930x = 1,186,766,214,544
5. Step 5: Solve for x
   x = 1,186,766,214,544/702,930
6. Step 6: Final answer
   x = 1,688,313.51