Finding the Third Proportional to 10,378,085,679 and 15,499,121,749.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,378,085,679 : 15,499,121,749.50 = 15,499,121,749.50 : x
2. Step 2: Convert to fraction form
   10,378,085,679/15,499,121,749.50 = 15,499,121,749.50/x
3. Step 3: Cross multiply
   10,378,085,679x = 15,499,121,749.50 × 15,499,121,749.50
4. Step 4: Simplify right side
   10,378,085,679x = 240,222,775,005,823,926,272
5. Step 5: Solve for x
   x = 240,222,775,005,823,926,272/10,378,085,679
6. Step 6: Final answer
   x = 23,147,118,113.69