Finding the Third Proportional to 42,859,742 and 64,688,195

Step by Step Solution

1. Step 1: Write the proportion equation
   42,859,742 : 64,688,195 = 64,688,195 : x
2. Step 2: Convert to fraction form
   42,859,742/64,688,195 = 64,688,195/x
3. Step 3: Cross multiply
   42,859,742x = 64,688,195 × 64,688,195
4. Step 4: Simplify right side
   42,859,742x = 4,184,562,572,358,025
5. Step 5: Solve for x
   x = 4,184,562,572,358,025/42,859,742
6. Step 6: Final answer
   x = 97,633,872.19