Finding the Third Proportional to 656,880,714 and 918,359,491.50

Step by Step Solution

1. Step 1: Write the proportion equation
   656,880,714 : 918,359,491.50 = 918,359,491.50 : x
2. Step 2: Convert to fraction form
   656,880,714/918,359,491.50 = 918,359,491.50/x
3. Step 3: Cross multiply
   656,880,714x = 918,359,491.50 × 918,359,491.50
4. Step 4: Simplify right side
   656,880,714x = 843,384,155,628,138,624
5. Step 5: Solve for x
   x = 843,384,155,628,138,624/656,880,714
6. Step 6: Final answer
   x = 1,283,922,845.74