Finding the Third Proportional to 31,355,167.50 and 67,515,447

Step by Step Solution

1. Step 1: Write the proportion equation
   31,355,167.50 : 67,515,447 = 67,515,447 : x
2. Step 2: Convert to fraction form
   31,355,167.50/67,515,447 = 67,515,447/x
3. Step 3: Cross multiply
   31,355,167.50x = 67,515,447 × 67,515,447
4. Step 4: Simplify right side
   31,355,167.50x = 4,558,335,583,609,809
5. Step 5: Solve for x
   x = 4,558,335,583,609,809/31,355,167.50
6. Step 6: Final answer
   x = 145,377,491.08