Finding the Third Proportional to 65,382,664 and 137,541,140

Step by Step Solution

1. Step 1: Write the proportion equation
   65,382,664 : 137,541,140 = 137,541,140 : x
2. Step 2: Convert to fraction form
   65,382,664/137,541,140 = 137,541,140/x
3. Step 3: Cross multiply
   65,382,664x = 137,541,140 × 137,541,140
4. Step 4: Simplify right side
   65,382,664x = 18,917,565,192,499,600
5. Step 5: Solve for x
   x = 18,917,565,192,499,600/65,382,664
6. Step 6: Final answer
   x = 289,336,102.80