Finding the Third Proportional to 1,688,391,522 and 3,667,430,139

Step by Step Solution

1. Step 1: Write the proportion equation
   1,688,391,522 : 3,667,430,139 = 3,667,430,139 : x
2. Step 2: Convert to fraction form
   1,688,391,522/3,667,430,139 = 3,667,430,139/x
3. Step 3: Cross multiply
   1,688,391,522x = 3,667,430,139 × 3,667,430,139
4. Step 4: Simplify right side
   1,688,391,522x = 13,450,043,824,445,558,784
5. Step 5: Solve for x
   x = 13,450,043,824,445,558,784/1,688,391,522
6. Step 6: Final answer
   x = 7,966,187,729.08