Finding the Third Proportional to 31,254,290 and 64,903,972

Step by Step Solution

1. Step 1: Write the proportion equation
   31,254,290 : 64,903,972 = 64,903,972 : x
2. Step 2: Convert to fraction form
   31,254,290/64,903,972 = 64,903,972/x
3. Step 3: Cross multiply
   31,254,290x = 64,903,972 × 64,903,972
4. Step 4: Simplify right side
   31,254,290x = 4,212,525,581,376,784
5. Step 5: Solve for x
   x = 4,212,525,581,376,784/31,254,290
6. Step 6: Final answer
   x = 134,782,315.69