Finding the Third Proportional to 612,068,985 and 1,328,055,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   612,068,985 : 1,328,055,436.50 = 1,328,055,436.50 : x
2. Step 2: Convert to fraction form
   612,068,985/1,328,055,436.50 = 1,328,055,436.50/x
3. Step 3: Cross multiply
   612,068,985x = 1,328,055,436.50 × 1,328,055,436.50
4. Step 4: Simplify right side
   612,068,985x = 1,763,731,242,417,205,504
5. Step 5: Solve for x
   x = 1,763,731,242,417,205,504/612,068,985
6. Step 6: Final answer
   x = 2,881,588,980.39