Finding the Third Proportional to 42,859,744 and 64,688,198

Step by Step Solution

1. Step 1: Write the proportion equation
   42,859,744 : 64,688,198 = 64,688,198 : x
2. Step 2: Convert to fraction form
   42,859,744/64,688,198 = 64,688,198/x
3. Step 3: Cross multiply
   42,859,744x = 64,688,198 × 64,688,198
4. Step 4: Simplify right side
   42,859,744x = 4,184,562,960,487,204
5. Step 5: Solve for x
   x = 4,184,562,960,487,204/42,859,744
6. Step 6: Final answer
   x = 97,633,876.69