Finding the Third Proportional to 612,068,970 and 1,328,055,406.50

Step by Step Solution

1. Step 1: Write the proportion equation
   612,068,970 : 1,328,055,406.50 = 1,328,055,406.50 : x
2. Step 2: Convert to fraction form
   612,068,970/1,328,055,406.50 = 1,328,055,406.50/x
3. Step 3: Cross multiply
   612,068,970x = 1,328,055,406.50 × 1,328,055,406.50
4. Step 4: Simplify right side
   612,068,970x = 1,763,731,162,733,880,320
5. Step 5: Solve for x
   x = 1,763,731,162,733,880,320/612,068,970
6. Step 6: Final answer
   x = 2,881,588,920.83