Finding the Third Proportional to 67,099,477.50 and 146,759,139

Step by Step Solution

1. Step 1: Write the proportion equation
   67,099,477.50 : 146,759,139 = 146,759,139 : x
2. Step 2: Convert to fraction form
   67,099,477.50/146,759,139 = 146,759,139/x
3. Step 3: Cross multiply
   67,099,477.50x = 146,759,139 × 146,759,139
4. Step 4: Simplify right side
   67,099,477.50x = 21,538,244,880,021,320
5. Step 5: Solve for x
   x = 21,538,244,880,021,320/67,099,477.50
6. Step 6: Final answer
   x = 320,989,755.55