Finding the Third Proportional to 21,105,680 and 31,534,276

Step by Step Solution

1. Step 1: Write the proportion equation
   21,105,680 : 31,534,276 = 31,534,276 : x
2. Step 2: Convert to fraction form
   21,105,680/31,534,276 = 31,534,276/x
3. Step 3: Cross multiply
   21,105,680x = 31,534,276 × 31,534,276
4. Step 4: Simplify right side
   21,105,680x = 994,410,562,844,176
5. Step 5: Solve for x
   x = 994,410,562,844,176/21,105,680
6. Step 6: Final answer
   x = 47,115,779.39