Finding the Third Proportional to 42,859,736 and 64,688,186

Step by Step Solution

1. Step 1: Write the proportion equation
   42,859,736 : 64,688,186 = 64,688,186 : x
2. Step 2: Convert to fraction form
   42,859,736/64,688,186 = 64,688,186/x
3. Step 3: Cross multiply
   42,859,736x = 64,688,186 × 64,688,186
4. Step 4: Simplify right side
   42,859,736x = 4,184,561,407,970,596
5. Step 5: Solve for x
   x = 4,184,561,407,970,596/42,859,736
6. Step 6: Final answer
   x = 97,633,858.69