Finding the Third Proportional to 359,717,320 and 782,776,402

Step by Step Solution

1. Step 1: Write the proportion equation
   359,717,320 : 782,776,402 = 782,776,402 : x
2. Step 2: Convert to fraction form
   359,717,320/782,776,402 = 782,776,402/x
3. Step 3: Cross multiply
   359,717,320x = 782,776,402 × 782,776,402
4. Step 4: Simplify right side
   359,717,320x = 612,738,895,528,065,664
5. Step 5: Solve for x
   x = 612,738,895,528,065,664/359,717,320
6. Step 6: Final answer
   x = 1,703,390,027.28