Finding the Third Proportional to 21,364,026,615 and 31,406,066,860.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,364,026,615 : 31,406,066,860.50 = 31,406,066,860.50 : x
2. Step 2: Convert to fraction form
   21,364,026,615/31,406,066,860.50 = 31,406,066,860.50/x
3. Step 3: Cross multiply
   21,364,026,615x = 31,406,066,860.50 × 31,406,066,860.50
4. Step 4: Simplify right side
   21,364,026,615x = 986,341,035,646,196,383,744
5. Step 5: Solve for x
   x = 986,341,035,646,196,383,744/21,364,026,615
6. Step 6: Final answer
   x = 46,168,311,499.56