Finding the Third Proportional to 66,807,513 and 103,444,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,807,513 : 103,444,141.50 = 103,444,141.50 : x
2. Step 2: Convert to fraction form
   66,807,513/103,444,141.50 = 103,444,141.50/x
3. Step 3: Cross multiply
   66,807,513x = 103,444,141.50 × 103,444,141.50
4. Step 4: Simplify right side
   66,807,513x = 10,700,690,410,672,022
5. Step 5: Solve for x
   x = 10,700,690,410,672,022/66,807,513
6. Step 6: Final answer
   x = 160,171,961.66