Finding the Third Proportional to 67,896,840 and 138,931,298

Step by Step Solution

1. Step 1: Write the proportion equation
   67,896,840 : 138,931,298 = 138,931,298 : x
2. Step 2: Convert to fraction form
   67,896,840/138,931,298 = 138,931,298/x
3. Step 3: Cross multiply
   67,896,840x = 138,931,298 × 138,931,298
4. Step 4: Simplify right side
   67,896,840x = 19,301,905,563,964,804
5. Step 5: Solve for x
   x = 19,301,905,563,964,804/67,896,840
6. Step 6: Final answer
   x = 284,282,826.18