Finding the Third Proportional to 67,588,746 and 138,760,546.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,588,746 : 138,760,546.50 = 138,760,546.50 : x
2. Step 2: Convert to fraction form
   67,588,746/138,760,546.50 = 138,760,546.50/x
3. Step 3: Cross multiply
   67,588,746x = 138,760,546.50 × 138,760,546.50
4. Step 4: Simplify right side
   67,588,746x = 19,254,489,264,978,664
5. Step 5: Solve for x
   x = 19,254,489,264,978,664/67,588,746
6. Step 6: Final answer
   x = 284,877,149.00