Finding the Third Proportional to 921,124,426.50 and 1,317,218,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   921,124,426.50 : 1,317,218,800.50 = 1,317,218,800.50 : x
2. Step 2: Convert to fraction form
   921,124,426.50/1,317,218,800.50 = 1,317,218,800.50/x
3. Step 3: Cross multiply
   921,124,426.50x = 1,317,218,800.50 × 1,317,218,800.50
4. Step 4: Simplify right side
   921,124,426.50x = 1,735,065,368,390,658,816
5. Step 5: Solve for x
   x = 1,735,065,368,390,658,816/921,124,426.50
6. Step 6: Final answer
   x = 1,883,638,429.81