Finding the Third Proportional to 86,656,427,958 and 188,696,928,702

Step by Step Solution

1. Step 1: Write the proportion equation
   86,656,427,958 : 188,696,928,702 = 188,696,928,702 : x
2. Step 2: Convert to fraction form
   86,656,427,958/188,696,928,702 = 188,696,928,702/x
3. Step 3: Cross multiply
   86,656,427,958x = 188,696,928,702 × 188,696,928,702
4. Step 4: Simplify right side
   86,656,427,958x = 35,606,530,901,567,669,796,864
5. Step 5: Solve for x
   x = 35,606,530,901,567,669,796,864/86,656,427,958
6. Step 6: Final answer
   x = 410,893,129,807.12