Finding the Third Proportional to 128,579,292 and 194,064,654

Step by Step Solution

1. Step 1: Write the proportion equation
   128,579,292 : 194,064,654 = 194,064,654 : x
2. Step 2: Convert to fraction form
   128,579,292/194,064,654 = 194,064,654/x
3. Step 3: Cross multiply
   128,579,292x = 194,064,654 × 194,064,654
4. Step 4: Simplify right side
   128,579,292x = 37,661,089,932,139,712
5. Step 5: Solve for x
   x = 37,661,089,932,139,712/128,579,292
6. Step 6: Final answer
   x = 292,901,674.49