Finding the Third Proportional to 138,231,442 and 296,976,804

Step by Step Solution

1. Step 1: Write the proportion equation
   138,231,442 : 296,976,804 = 296,976,804 : x
2. Step 2: Convert to fraction form
   138,231,442/296,976,804 = 296,976,804/x
3. Step 3: Cross multiply
   138,231,442x = 296,976,804 × 296,976,804
4. Step 4: Simplify right side
   138,231,442x = 88,195,222,114,054,416
5. Step 5: Solve for x
   x = 88,195,222,114,054,416/138,231,442
6. Step 6: Final answer
   x = 638,025,769.23