Finding the Third Proportional to 19,259,764,659 and 39,061,070,046

Step by Step Solution

1. Step 1: Write the proportion equation
   19,259,764,659 : 39,061,070,046 = 39,061,070,046 : x
2. Step 2: Convert to fraction form
   19,259,764,659/39,061,070,046 = 39,061,070,046/x
3. Step 3: Cross multiply
   19,259,764,659x = 39,061,070,046 × 39,061,070,046
4. Step 4: Simplify right side
   19,259,764,659x = 1,525,767,193,138,518,556,672
5. Step 5: Solve for x
   x = 1,525,767,193,138,518,556,672/19,259,764,659
6. Step 6: Final answer
   x = 79,220,448,440.19