Finding the Third Proportional to 86,236,326 and 187,026,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,236,326 : 187,026,997.50 = 187,026,997.50 : x
2. Step 2: Convert to fraction form
   86,236,326/187,026,997.50 = 187,026,997.50/x
3. Step 3: Cross multiply
   86,236,326x = 187,026,997.50 × 187,026,997.50
4. Step 4: Simplify right side
   86,236,326x = 34,979,097,793,865,008
5. Step 5: Solve for x
   x = 34,979,097,793,865,008/86,236,326
6. Step 6: Final answer
   x = 405,619,063.52