Finding the Third Proportional to 151,187,820,813 and 323,940,519,697.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,187,820,813 : 323,940,519,697.50 = 323,940,519,697.50 : x
2. Step 2: Convert to fraction form
   151,187,820,813/323,940,519,697.50 = 323,940,519,697.50/x
3. Step 3: Cross multiply
   151,187,820,813x = 323,940,519,697.50 × 323,940,519,697.50
4. Step 4: Simplify right side
   151,187,820,813x = 104,937,460,301,886,377,689,088
5. Step 5: Solve for x
   x = 104,937,460,301,886,377,689,088/151,187,820,813
6. Step 6: Final answer
   x = 694,086,730,912.54