Finding the Third Proportional to 625,686,853 and 852,078,696.50

Step by Step Solution

1. Step 1: Write the proportion equation
   625,686,853 : 852,078,696.50 = 852,078,696.50 : x
2. Step 2: Convert to fraction form
   625,686,853/852,078,696.50 = 852,078,696.50/x
3. Step 3: Cross multiply
   625,686,853x = 852,078,696.50 × 852,078,696.50
4. Step 4: Simplify right side
   625,686,853x = 726,038,105,029,139,072
5. Step 5: Solve for x
   x = 726,038,105,029,139,072/625,686,853
6. Step 6: Final answer
   x = 1,160,385,744.96