Finding the Third Proportional to 109,931,142 and 238,804,620

Step by Step Solution

1. Step 1: Write the proportion equation
   109,931,142 : 238,804,620 = 238,804,620 : x
2. Step 2: Convert to fraction form
   109,931,142/238,804,620 = 238,804,620/x
3. Step 3: Cross multiply
   109,931,142x = 238,804,620 × 238,804,620
4. Step 4: Simplify right side
   109,931,142x = 57,027,646,533,344,400
5. Step 5: Solve for x
   x = 57,027,646,533,344,400/109,931,142
6. Step 6: Final answer
   x = 518,757,883.31