Finding the Third Proportional to 31,496,211 and 65,506,590

Step by Step Solution

1. Step 1: Write the proportion equation
   31,496,211 : 65,506,590 = 65,506,590 : x
2. Step 2: Convert to fraction form
   31,496,211/65,506,590 = 65,506,590/x
3. Step 3: Cross multiply
   31,496,211x = 65,506,590 × 65,506,590
4. Step 4: Simplify right side
   31,496,211x = 4,291,113,333,428,100
5. Step 5: Solve for x
   x = 4,291,113,333,428,100/31,496,211
6. Step 6: Final answer
   x = 136,242,208.10