Finding the Third Proportional to 780,143,133 and 1,069,765,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   780,143,133 : 1,069,765,789.50 = 1,069,765,789.50 : x
2. Step 2: Convert to fraction form
   780,143,133/1,069,765,789.50 = 1,069,765,789.50/x
3. Step 3: Cross multiply
   780,143,133x = 1,069,765,789.50 × 1,069,765,789.50
4. Step 4: Simplify right side
   780,143,133x = 1,144,398,844,384,558,336
5. Step 5: Solve for x
   x = 1,144,398,844,384,558,336/780,143,133
6. Step 6: Final answer
   x = 1,466,908,822.21