Finding the Third Proportional to 29,458,381 and 64,015,890

Step by Step Solution

1. Step 1: Write the proportion equation
   29,458,381 : 64,015,890 = 64,015,890 : x
2. Step 2: Convert to fraction form
   29,458,381/64,015,890 = 64,015,890/x
3. Step 3: Cross multiply
   29,458,381x = 64,015,890 × 64,015,890
4. Step 4: Simplify right side
   29,458,381x = 4,098,034,172,492,100
5. Step 5: Solve for x
   x = 4,098,034,172,492,100/29,458,381
6. Step 6: Final answer
   x = 139,112,674.67