Finding the Third Proportional to 453,144,973.50 and 699,735,078

Step by Step Solution

1. Step 1: Write the proportion equation
   453,144,973.50 : 699,735,078 = 699,735,078 : x
2. Step 2: Convert to fraction form
   453,144,973.50/699,735,078 = 699,735,078/x
3. Step 3: Cross multiply
   453,144,973.50x = 699,735,078 × 699,735,078
4. Step 4: Simplify right side
   453,144,973.50x = 489,629,179,383,666,112
5. Step 5: Solve for x
   x = 489,629,179,383,666,112/453,144,973.50
6. Step 6: Final answer
   x = 1,080,513,319.17