Finding the Third Proportional to 55,525,994,898 and 84,590,012,407.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,525,994,898 : 84,590,012,407.50 = 84,590,012,407.50 : x
2. Step 2: Convert to fraction form
   55,525,994,898/84,590,012,407.50 = 84,590,012,407.50/x
3. Step 3: Cross multiply
   55,525,994,898x = 84,590,012,407.50 × 84,590,012,407.50
4. Step 4: Simplify right side
   55,525,994,898x = 7,155,470,199,101,004,447,744
5. Step 5: Solve for x
   x = 7,155,470,199,101,004,447,744/55,525,994,898
6. Step 6: Final answer
   x = 128,867,032,679.84