Finding the Third Proportional to 42,859,740 and 64,688,192

Step by Step Solution

1. Step 1: Write the proportion equation
   42,859,740 : 64,688,192 = 64,688,192 : x
2. Step 2: Convert to fraction form
   42,859,740/64,688,192 = 64,688,192/x
3. Step 3: Cross multiply
   42,859,740x = 64,688,192 × 64,688,192
4. Step 4: Simplify right side
   42,859,740x = 4,184,562,184,228,864
5. Step 5: Solve for x
   x = 4,184,562,184,228,864/42,859,740
6. Step 6: Final answer
   x = 97,633,867.69