Finding the Third Proportional to 91,323,537,805 and 139,714,787,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,323,537,805 : 139,714,787,359.50 = 139,714,787,359.50 : x
2. Step 2: Convert to fraction form
   91,323,537,805/139,714,787,359.50 = 139,714,787,359.50/x
3. Step 3: Cross multiply
   91,323,537,805x = 139,714,787,359.50 × 139,714,787,359.50
4. Step 4: Simplify right side
   91,323,537,805x = 19,520,221,806,910,301,536,256
5. Step 5: Solve for x
   x = 19,520,221,806,910,301,536,256/91,323,537,805
6. Step 6: Final answer
   x = 213,747,980,817.29