Finding the Third Proportional to 6,365,380,172 and 13,390,405,948

Step by Step Solution

1. Step 1: Write the proportion equation
   6,365,380,172 : 13,390,405,948 = 13,390,405,948 : x
2. Step 2: Convert to fraction form
   6,365,380,172/13,390,405,948 = 13,390,405,948/x
3. Step 3: Cross multiply
   6,365,380,172x = 13,390,405,948 × 13,390,405,948
4. Step 4: Simplify right side
   6,365,380,172x = 179,302,971,452,233,777,152
5. Step 5: Solve for x
   x = 179,302,971,452,233,777,152/6,365,380,172
6. Step 6: Final answer
   x = 28,168,462,308.18