Finding the Third Proportional to 19,259,764,360 and 39,061,069,461

Step by Step Solution

1. Step 1: Write the proportion equation
   19,259,764,360 : 39,061,069,461 = 39,061,069,461 : x
2. Step 2: Convert to fraction form
   19,259,764,360/39,061,069,461 = 39,061,069,461/x
3. Step 3: Cross multiply
   19,259,764,360x = 39,061,069,461 × 39,061,069,461
4. Step 4: Simplify right side
   19,259,764,360x = 1,525,767,147,437,066,813,440
5. Step 5: Solve for x
   x = 1,525,767,147,437,066,813,440/19,259,764,360
6. Step 6: Final answer
   x = 79,220,447,297.16