Finding the Third Proportional to 405,531,917 and 832,562,300

Step by Step Solution

1. Step 1: Write the proportion equation
   405,531,917 : 832,562,300 = 832,562,300 : x
2. Step 2: Convert to fraction form
   405,531,917/832,562,300 = 832,562,300/x
3. Step 3: Cross multiply
   405,531,917x = 832,562,300 × 832,562,300
4. Step 4: Simplify right side
   405,531,917x = 693,159,983,381,289,984
5. Step 5: Solve for x
   x = 693,159,983,381,289,984/405,531,917
6. Step 6: Final answer
   x = 1,709,261,230.31