Finding the Third Proportional to 27,309,288,478 and 59,580,556,172

Step by Step Solution

1. Step 1: Write the proportion equation
   27,309,288,478 : 59,580,556,172 = 59,580,556,172 : x
2. Step 2: Convert to fraction form
   27,309,288,478/59,580,556,172 = 59,580,556,172/x
3. Step 3: Cross multiply
   27,309,288,478x = 59,580,556,172 × 59,580,556,172
4. Step 4: Simplify right side
   27,309,288,478x = 3,549,842,673,764,847,321,088
5. Step 5: Solve for x
   x = 3,549,842,673,764,847,321,088/27,309,288,478
6. Step 6: Final answer
   x = 129,986,640,868.53