Finding the Third Proportional to 320,259,332 and 699,243,012

Step by Step Solution

1. Step 1: Write the proportion equation
   320,259,332 : 699,243,012 = 699,243,012 : x
2. Step 2: Convert to fraction form
   320,259,332/699,243,012 = 699,243,012/x
3. Step 3: Cross multiply
   320,259,332x = 699,243,012 × 699,243,012
4. Step 4: Simplify right side
   320,259,332x = 488,940,789,830,832,128
5. Step 5: Solve for x
   x = 488,940,789,830,832,128/320,259,332
6. Step 6: Final answer
   x = 1,526,702,709.26