Finding the Third Proportional to 31,566,172,302.56 and 68,689,263,927.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,566,172,302.56 : 68,689,263,927.38 = 68,689,263,927.38 : x
2. Step 2: Convert to fraction form
   31,566,172,302.56/68,689,263,927.38 = 68,689,263,927.38/x
3. Step 3: Cross multiply
   31,566,172,302.56x = 68,689,263,927.38 × 68,689,263,927.38
4. Step 4: Simplify right side
   31,566,172,302.56x = 4,718,214,978,884,580,409,344
5. Step 5: Solve for x
   x = 4,718,214,978,884,580,409,344/31,566,172,302.56
6. Step 6: Final answer
   x = 149,470,608,398.78