Finding the Third Proportional to 109,931,140 and 238,804,616

Step by Step Solution

1. Step 1: Write the proportion equation
   109,931,140 : 238,804,616 = 238,804,616 : x
2. Step 2: Convert to fraction form
   109,931,140/238,804,616 = 238,804,616/x
3. Step 3: Cross multiply
   109,931,140x = 238,804,616 × 238,804,616
4. Step 4: Simplify right side
   109,931,140x = 57,027,644,622,907,456
5. Step 5: Solve for x
   x = 57,027,644,622,907,456/109,931,140
6. Step 6: Final answer
   x = 518,757,875.37