Finding the Third Proportional to 642,331,669.50 and 1,022,075,959.50

Step by Step Solution

1. Step 1: Write the proportion equation
   642,331,669.50 : 1,022,075,959.50 = 1,022,075,959.50 : x
2. Step 2: Convert to fraction form
   642,331,669.50/1,022,075,959.50 = 1,022,075,959.50/x
3. Step 3: Cross multiply
   642,331,669.50x = 1,022,075,959.50 × 1,022,075,959.50
4. Step 4: Simplify right side
   642,331,669.50x = 1,044,639,266,987,845,632
5. Step 5: Solve for x
   x = 1,044,639,266,987,845,632/642,331,669.50
6. Step 6: Final answer
   x = 1,626,323,777.25