Finding the Third Proportional to 776,790,141.75 and 1,663,765,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   776,790,141.75 : 1,663,765,717.50 = 1,663,765,717.50 : x
2. Step 2: Convert to fraction form
   776,790,141.75/1,663,765,717.50 = 1,663,765,717.50/x
3. Step 3: Cross multiply
   776,790,141.75x = 1,663,765,717.50 × 1,663,765,717.50
4. Step 4: Simplify right side
   776,790,141.75x = 2,768,116,362,728,289,792
5. Step 5: Solve for x
   x = 2,768,116,362,728,289,792/776,790,141.75
6. Step 6: Final answer
   x = 3,563,531,788.00